Why? It's good to let them get into bitcoin while they are young so that they can understand what bitcoin really is.
And at their age they can understand what bitcoin really is. It's like training them while they are so it's a perfect timing while they are young they should be in bitcoin.
It's up to those youngster if they will depend on bitcoin.
That may be true but young people should spend their money wisely and not just buy as much BTC as they can afford.
They indeed can start understanding the Mechanism of BTC and the Use/Reward of Investing into it.
But they definitely should start with buying small amounts instead of massive Buys.
Young ones are still depending to their parents and their parents should be the one that's teaching them on how to be wise when they are spending their money.
And that's why educating them to bitcoin is one of the wisest idea that can happen today. Teach them how to trade.
Learn how the market moves and analyzing it properly.