That's what I was thinking, if the parents have a minimum of financial knowledge they will invest the money in one way or another. In countries like the US there are types of accounts for that, like 529 plans. Although I prefer to have the money myself, increase my net worth and if necessary I will be able to help them. But I think it is more important to teach them how to fish than to give them the fish. Spoiling them may end up with them spending their money on drugs and the like.
There are pension funds in the USA and Canada add Bitcoin to their portfolio and packages provide to the elderly.
They can try to give Bitcoin small proportion of each package but if after trials, they see good demands from the elderly who want to make savings in these products, and they see success from Bitcoin growth, they will consider to add higher proportion for Bitcoin.
Bitcoin Spot ETFs in the USA, then other countries, the party just kicked off in January 2024.