Most parents behave protectively towards their children
And that's natural. To be honest, I'd prefer having overprotective parents, who might buy misinformation in the process of protecting their kids, than careless parents. The overwhelming majority has bought that bitcoin is bad. It's natural for parents to reinforce that opinion to their children, even though it's bullshit. not to mention the fact that this requires cash injections, which undoubtedly pushes people away from their passion for the bitcoin.
If it pushes away parents themselves, imagine what their response would be if their children asked for permission to hold bitcoin. 