First let me say I am not trolling, I have a couple hundred bitcoins left from a stash I bought for cheap in 2012 (best decision ever, I wish I had bought more). I did lose a lot in Mt.Gox and a couple other scams so don't envy me. Anyway I think 30 is a good age to give them to him because he could finish college and still have a few years to work and learn about the value of money. And we are talking 2045 which is a long time for bitcoin to appreciate. Wondering what people think and if there is anything in particular I should pay attention to, besides the obvious of keeping them in a safe place.