Imagine that a 16 years old boy wants to invest $3,000 in BTC.
He is under 18 so he can't do it, but his father creates a trading account and let's the teenager invest as if he (the kid) was him (the father).
Two years lates, the kid is now 18 years old. But legally he owns $0 worth of bitcoin and his father owns $200,000 (price has gone up, etc)
What can they do to give the $200,000 worth of bitcoin to the teenager without paying taxes?
That is a little bit impossible and it depends on that in which country you life cause sometimes law allow to give your childrean money without paying taxes (like gift) but i think that 200k is to big amount of money.