We must be able to profit from the rising Bitcoin price, lest we be among those who regret not getting profit from Bitcoin. Sometimes we invest
in Bitcoin not only for our own benefit, we can also give the profit to help others. Especially helping our own families, like the OP bought Bitcoin
for investment for 18 years and it was a very good decision. If we look at the history of the movement of Bitcoin, the price of Bitcoin has
indeed experienced a very drastic increase over the past 12 years. So if the investment in Bitcoin is now $100, maybe in the next 18 years
the profit generated can go up very high. This means that helping our own families does not have to be by giving large amounts of money,
we can help with small amounts. But if we give the money in Bitcoin, it will be worth a lot in the future. There is no doubt that Bitcoin can make
human life much better.

No, you're wrong. Bitcoin is increasing from the first halving to the last halving, but not from one year to another year. Please check the Bitcoin price history in coinmarketcap or coingecko. By the way, I agree if Bitcoin price is already increasing very far, but it doesn't guarantee the price will be higher than the current ATH in the future. So, in my opinion, to expect Bitcoin to have a high price is no problem but don't rely your future with Bitcoin price.

Good gesture, it is good to know you care so much about your nephew and his upbringing, $100 btc is not small if we can estimate in 10 to 18 years time at what price btc will be trading at,
there is a high possibility btc price is very high and your $100 investment increases a lot too, on the other hand, it can be the opposite, the more reason why you shouldn't rely only on your little investment for his studies,
Your brother needs to be more responsible now that he has a family to care for, find a way of earning more to support your nephews education when the time comes, I hope btc worth more in future so your gift can be more valuable.

I think its a great idea. In my country banks offer similar products where you invest today and they guarantee a payout for the 18th birthday of the child. The problem is that the interest offered is very small, it's usually much better to invest the money yourself and give it as a present later. In the end it's like giving a loan to the bank for 18 years, but who knows if the bank will be around in the future. I really like your approach, you made your nephew a HODL investor for the next 18 years  that should be a nice return for him then. And this will also make him interested in crypto currencies and learn something about them if he already owns some.

Honestly speaking $100 would still not be sufficient for education by then. 18 years is a long time and just imagine what would be the education cost by then.
Even if we consider that bitcoin goes 100x from now which is itself a big deal according to me, it would still give out only $10,000.
Do you really think $10k would be really sufficient for education after 18 years ? May be in a mid level college then yes but otherwise a big no.

OP, do you believe that bitcoin will be worth $2 million or higher in the next 18 years? If not, think of it as a small gift for your new family member that he or she can use to make ends meet.

I don't think the 0.0028 btc you invest right now can finance your nephew's education after he turns 18, that's an insecure thing because we never know what changes will happen to bitcoin in the future or at least during that period. The price of bitcoin is very volatile, although we have found the fact that ATH is always possible but you can't expect such a small investment at this time.

Teach him about bitcoin, trading and also investing. If your brother manages to gain enough knowledge, he will be able to turn your $100 into hundreds of thousands in 18 years. Look, life is full of uncertainty because maybe he will be rich with $100 but in theory it will be very difficult if your brother is not able to take advantage of his opportunities.

If you have great faith in bitcoin, I think nothing is impossible for bitcoin and the most important thing is strong patience because there will be so many trials along the way to reach your goal.
You have good intentions to invest $100 over 18 years in bitcoin and for your nephew when he grows up it sounds like you have been observing or predicting the development of bitcoin and if you look at its track record I think its development will be correct. continues and prices will continue to rise.
and there is a possibility that your investment capital of $100 in the future will be $2,000 and if it continues $2,000 will become $10,000.

and the question is whether you will go according to plan, because most people will be tempted when they make a big profit and sell it that doesn't go according to plan.

Nice news, I feel like I recognise your nick from somewhere, well done at any rate.

Just a piece of advice, among everything else that you've received already! I tested with two children circa 2017/18 to give them their own Bitcoin with private keys and instructions. I posted about it somewhere on the forum that last year, checking back with them, one has lost completely the keys, another has it but doesn't quite remember how to use it (but the latter case is solved easily with internet). It was not the outcome I expected, as I thought the elder one was more responsible, and more technically at ease.

Thankfully, not a big amount, what I do store for them I keep custody of and the lesson is hopefully learnt by the elder one. I do ask them to check the wallet I set up for them to see how it grows. It definitely makes for excited eyes.

You might want to teach the same lesson, and let them see for themselves.

That's a reasonable choice so far. A $100 investment isn't really capable of providing a decent return if the bitcoin price doesn't rise beyond 1 million. The OP could introduce him to this forum, that's another option he can do in his spare time.

There are many ways to earn bitcoins on forums other than signature campaigns or bounty, I think if he has painting skills or someone who can make art then he can enter contests for some of the current campaign. But I think the OP knows more other options at this point how his investment can pay off.

Nothing is assured that everything would increase and that you should really put up into your mind so that you wouldnt really be expecting that much because not everytime we would really be hoping into something
would really happen in the future.Yes, bitcoin does have potential but it wouldnt really be giving out any assurances that it would really be heading there.Invest on what you  can afford to lose and then
its better to have that fiat savings if you are really minding about your new born son and on the future that he/she could possibly benefit out with those savings you had made.
It would be better if you do save up on both fiat and crypto which would really be ideal.