Those mentioned did not start out child stars though. I think history is well documented on kids getting famous young. Not good...
Plus all three mentioned actually had good music as a side note
And think about the likes of non child stars like Keith Moon, Jani Lane, Bon Scott and god knows how many others who are no longer here because fame meant drink and drugs.Its no different no matter what age they are. Fame and money are often too much for people to handle sensibly.
A lot of adults do it yes but we are talking about a kid essentially.
I don't care either way...he's a douche.