My kids have bank accounts to learn how to manage money, banks, and training: getting used to having money in the bank before, during, and after a trip to the mall. My hope is to let them screw up their finances when they’re little instead of 20-something.

We’ve also setup tax-deferred retirement investment accounts for them. $1 at 20 can 70x or more by retirement. Mostly it’s the mental training though. Being ok “losing” money during a market correction, saving for wealth in parallel with saving to buy, seeing interest and returns over time, and having a long term plan.