I agree with you. Given how accessible crypto trading has become for adults, cryptocurrency may also be useful for children and their parents who want to invest in their children's future. Moreover, investing in cryptocurrency could be the next logical step toward financial literacy for children, especially for those approaching adolescence and beyond.
There are ways to give cryptocurrency gifts to children.
1) Cryptocurrency gifts. You can create custodial wallets for your child and keep the private keys safe until your child is an adult. This will allow you to store cryptocurrency gifted to your child, effectively controlling the account.
Parents, for example, can make a regular cryptocurrency contribution to their child's wallet, and some even combine their crypto-gift with real coin so that the child has a physical sense of the gift.
2) Cryptocurrency and pocket money. This is a more subtle approach, as you may need to give your child access to the wallet keys so they can spend the savings. Alternatively, you could split the savings into cryptocurrency and cash or Stablecoins to satisfy your child's desire to spend the funds without spending the cryptocurrency.
3) Crypto fund for university. University requires a lot of spending by parents when a child enrolls. One way to save on rising expenses is to open an educational savings account or start investing in cryptocurrency, doing so ahead of time. This approach will at the very least save money, and given the deflationary nature of bitcoin, increase the initial amount in the long run.
In any case, I believe that in today's world it is necessary to develop children financially, because it is both useful and interesting.