Hi, I hold a few tokens of varied nature and a few coins. I have setup a few eth addresses for the younger members of my family. I am talking about kids that are less than 3 yr old

So, what would you include in their new accounts, so that they can use it in 15 yrs?
For such a long term HODL I absolutely would put there some Bancor. It is an unique coin which solves the problem of liquidity in cryptos so I am convinced it will have a very bright future.