You are right about the fame, it's not always so easy to go from slum kid to millionaire. So many fake friends, the sudden ruch of happiness and the feeling of invincibility that comes with the fat pay.
I think they should hire better managers. Most of them just carry a family member or friend as a manager and end up spending their money on frivolous things.
The language barrier is a real challenge. But if you're making big bucks you should be able to hire a proper tutor.
Good article here.