His children may have merited their roles but surely their name got them through the door to be considered at all.
No one ever complained about Hollywood nepotism before lol.
Personally, I think nepotism gets a bad rap.
If your father was a cabinet maker, and you spent your entire childhood watching him build cabinets, you'd probably be pretty well equipped to get into the cabinet making business yourself.
Kids growing up watching their parents in the entertainment industry aren't really much different.