Welcome to the forum, OP. Not to gatekeep, but you shouldn't rely too much in Bitcoin that could change your life. It isn't a profit-generator although I kinda contradict myself as a hodler, but I just want to get my point across that it shouldn't be to be fully relied on.

Just keep reading around here and follow the rules like every other forum out there have. Hope you have great stay in here, OP.

IMO, the reason that many of them experience is that when the price of bitcoin is at its lowest they are afraid that if they buy the price will drop again so they undo their intention not to buy it is a reason that I can meet by them so that they cannot take advantage of opportunities early when the price of bitcoin is still low.
Likewise, thinking bitcoin is high risk, there is still confidence in me that bitcoin will not completely go to zero, maybe the lowest price will come back again at some point the return will be quite high so indeed this is very spandan with its risks but many people are brave enough to invest in bitcoin because the price will continue to rise.

Now there is no need to look back in time it is meaningless, if they are optimistic about bitcoin buying now is also not a miss because of the high price at $30K, I remember how when the price of bitcoin reached $8K of course if you look back in time why not buy it but that's the time sometimes you have to make the best use of it.

There is no point in regretting what's gone, learn from previous mistakes and move on. There is regret all around in Bitcoin community, someone is saying he missed out Bitcoin when it was 1000$ while some other guy is regretting that he missed Bitcoin when it was 3000$ and story goes on. But they are still fearful to buy Bitcoin citing that price is too high now. If you learned from your previous mistake then its not a mistake rather an experience or knowledge that will help you in the long run.

I don't think you need to regret passing because you might even have been one of the victims of a scam if you had invested early at that time, as you said your pals got scammed. Therefore, I think now is the right time for you to invest, which is why you are here to learn now. also be aware that it's not always too late to buy Bitcoin. There are still chances ahead of us, as we anticipate in the cryptocurrency sector, as the adoption of Bitcoin has not yet reached its peak. Therefore, before you start investing, I'll only encourage you to concentrate on learning about Bitcoin and the cryptocurrency market thoroughly.

Join the line OP, you’re not the only one who missed the opportunity of buying bitcoin early. Many of us have a similar story to tell. Forget about the past, it’s gone now there is nothing you can do turn the clock backwards. Truth be told, you can never know what would have happened if you bought bitcoins in 2018, you could have lost it to a scam. Now that you know better, I think the best way to get into bitcoin now is to DCA and buy some bitcoins.

Look on the bright side.
If you had followed the footsteps of your friends maybe you would have had the wrong idea of Bitcoin. You would probably have thought it was a get-rich-quick scheme like many people think,  and that would have made you lose so much money and then you'll conclude that Bitcoin was a scam and wash your hands off of it. So don't focus on what could have been, focus on what could be. 

In life,  not taking risks is risky. We have to take a risk to reach for what we want. It won't be handed to us. But that doesn't mean we should go about taking any kind of risk.  We should take calculated risks. Understand what the stuff is before diving into it.  So as you have decided to take the risk,  make sure you know what you're signing up for.  Learn and get an understanding of Bitcoin.  Don't just focus on making a profit "Learn before you earn".

I don't think you're contradicting yourself.  Holding Bitcoin doesn't mean you rely on Bitcoin to change your life.  Although Bitcoin did literary save a lot of people's lives. 
And it's good you gave him this advice so he doesn't get the wrong idea about Bitcoin. 
He should just look at the success stories of others and feel it's an overnight success.  They worked for it.  He needs to know this. 

in this world there are many people who are not interested in bitcoin and many also think of it as a fraud and usually people who say negative about btc because they don't know about btc.

so of course what you do is natural because most people always do that and what is certain is that there is a process beforehand to be able to receive bitcoins, you are not too late to learn about btc and welcome to join this forum.

People who have no idea what Bitcoin is usually say that it is a scam. Because of their negative outlook, they do not see the true beauty of Bitcoin. If they only had adequate Bitcoin expertise, they would encourage Bitcoin to their neighbors and friends in order to assist them benefit on this huge opportunity. Investing in Bitcoin today is a great opportunity because not everyone has it. So get it now, before it's too late.

When you are having friends that are against bitcoin, then you will also be discouraged, their are lots of people that have being scammed all because they have been hearing about bitcoin and they want to invest in bitcoin, but most of them don’t know the appropriate way to do that which at the end they will end up being scammed, people that have been scammed before will always claim that bitcoin is a scam, but they won’t know they didn’t really invest in bitcoin.

Since you know that you made a mistake and you have realized your mistake, then it’s not late to invest in bitcoin now, but if you don’t invest in bitcoin now, then you will definitely regret again in future that you didn’t invest in bitcoin and you will have yourself to blame for that, some people are already complaining that bitcoin price is already high and they can’t risk investing in it, but bitcoin price is till low, but the only thing you should do is just to be ready to hold.

Since you are now on forum also, then we all can make the forum active, just make sure you make positive impact on the forum and make sure you follow the forum rules and regulations so that you won’t go against it.