I would like to set up a wallet for each of my kids and start saving accordingly. I am not sure it is the best idea to create new accounts with DEX's under my name where the future owner will be my kids. Any ideas on best practices a for this?
Allow me to enter into context with these two basic points, I think they are necessary because if you understood them, your question would not have arisen:
1.-The traditional scheme gives you an account address and a physical office. Deposits are in Fiat + KYC.
2.-with bitcoin you only need a public address, but you do not need the infrastructure of a bank, deposits in bitcoin, not KyC.
It doesn't matter what he meant by Dex, or whatever adjective he adds to Wallet, as in his case "Childrens," a bitcoin wallet provides several advantages in terms of control, e.g. giving succession to his children their bitcoin just by giving them access to the private key of a public address.
That is what you have to interpret, now what type of wallet and how will you give access to the private keys, some posts above have already made suggestions but it is if you want a very creative and simple or technological part if you wish, by the way there is also the legal one.