I think it depends on your friend's current financial condition. If he actually needs money and hasn't worked or is already working and has the desire to start a business. So I think selling some of it later in the bull market or when BTC reaches a new Ath is something that will be really profitable. And he can start another business with these profits. But if he is already working and does not have financial difficulties, then holding onto the bitcoins he has for the long term is certainly a good step. I think your friend is lucky because he has 4 bitcoins. Because even I am currently still struggling to reach 1 btc. And it's really not an easy journey.

So the choice is based on the situation and conditions of your friend's life. And actually it would also be better if he sold some of it at the highest price later and then put it in other investment instruments with lower risk. Because it is also important for us to divide wherever we invest (investment diversification). Because it is too risky to only invest in one instrument.

If your friend has 4 BTC, your friend should first establish his short-term and long-term financial goals. If he needs funds immediately or wishes to cover living expenses, he may consider selling a portion of his Bitcoins. If his goal is long-term and he believes in the potential growth of Bitcoin, he may choose to hold his Bitcoin. If he has financial needs or pressure to pay off debts, it may be wise to set aside some Bitcoins to meet those obligations. Although Bitcoin is over $38k in the current market the decision is ultimately your friend's, I think it's better to hold onto his Bitcoin.

This is a very large amount of bitcoin when converted to fiat. If I am in your friends situation, I will sell some of them and keep some for the upcoming bull run. The ones I sell will be used for personal development, business and daily expenses so that I don’t look at the one left in the wallet. Bitcoin is increasing since it was first launched, since I’m hoping and sure that it’ll continue growing in future, I would rather keep some for a later time and if time permits and I have enough funds on ground, I will still invest more to help expand my earning or business when I cash out more profit from the investment.

I'd sell some and will keep on holding the rest. If I am still at that age, I'd enjoy the money that I'll get from selling a few from that stash. There's no need to rush and tell your friend that he should think what he wants to do with his life while he's young.

There is no need to get pressured with life and he's got a lot of bitcoins being held. That means that he can be financially free as of now and can do that much with that money.

Depending on the country you reside, if it's from a first world country then that amount may not that be much compared to the actual rich people but hey, that's still $150k so, can be said as financially free guy.

Who who promised him, that Bitcoin is safe heaven can really give him a better tip/suggestion. Bitcoin is a safe haven in the crypto industry, and overall the crypto industry is a risky investment market. We always recommend everyone invest only the amount they can afford to lose Bitcoin is not the money doubler, if you do not have the patience and determination this market has nothing for your survival not even with Bitcoin.

There is no doubt that youth is more interested in managing their finance to a new standard and efficiency to avoid a future crisis, but OP the whole story by you seems very fake, I'm not allegating just pointing out the weakness of your story, your friend owns 4 BTC and he is not clear with what to do really? How immature that he cant make proper decisions seems like already your friend has good background money that why he invested in Bitcoin without proper education nd long term plan.

I caught your words on this one. If he got it in the last few years would you tell us how he got it? If he gets it using the DCA method then it can be confirmed that he is actually a rich person because in the last few years the price of BTC has been around $15k-$60k, CMIIW. I'm still confused because you said he was still in his 20s, which means how did he get that much bitcoin? Maybe if you say he is in his 30s it makes a little sense because he was at least 20 years old when Bitcoin was first released.

The 20s are still very young, and having 4 BTC is a great success, I don't know what kind of work your friend did to accumulate 4 BTC at the age of 20.
I think for the situation your friend is in, it has to go back to the purpose of life, the purpose of why you are saving wealth in bitcoin.

If it is planned for old age costs, yes it is better to continue to hold it, because we will enter the zone of institutions that will enter bitcoin if seen from the response to the increase in bitcoin adoption, it is likely that the benefits will be much greater, but if it is intended for education, marriage, and other things he needs using the BTC he has, it is certainly not a wrong thought either because that is his plan, but if education and other things he can fulfill without selling the BTC he has, I think it is better for him not to sell the BTC he has.

I think being able to retire depends on which nation you live in, and if this is true or not doesn't really matter in this case because we are talking about at least one person in the world does have 120k at age 20 which means we should help that person. I believe that if you have 4 bitcoins, which is a bit higher than 120k right now, it would be 150k or so if I am not wrong, that is just the situation you are in right now. Keep on working and keep on living, but eventually that bitcoin amount will rise, imagine having bitcoin at 200k, that would mean you would have 800k, suddenly a totally different story. This is why I believe that the best thing you could do would be just holding and not spending it right away.

So true. But because OP indirectly seems to mention that his friend is indeed in good financial condition. Because something he said said that his friend should continue working and accumulate more. Which means that his friend is still able to accumulate more. And this makes us understand that the situation is that he is not in a state of economic distress. Which means that his finances can be said to be in fairly good condition. So holding it until Bitcoin reaches its new ATH would indeed be a good choice. And selling it partly or completely (up to you) when BTC reaches ATH could indeed be a step that he could choose. And makes him divide these profits into several instruments (Diversification).
Because after all, investment diversification must be implemented if it involves large investment capital. Because we will never know which instrument will make us get the highest profit. He is still young. But nowadays many young people have achieved financial stability and even achieved financial freedom.
Even some influencers in my country are still underage but already have billions of money and make their parents happy. So I don't know whether OP's friend is really a creative young person like content creators or whatever. but what is certain is that having almost 4 BTC at a young age is an extraordinary achievement.