I think it’s a tossup as to how members of the 3rd generation of Robertsons will turn out. They have a lot of advantages, starting with strong families and good moral formation, but even in such cases, there’s always been a certain amount of teenage running-wild. (Their grandparents, for example.) The introduction of nationwide celebrity and the opportunities it opens for young adults may result in some unhappy and highly public trainwrecks. I sincerely hope not, though!
Another positive element is that they were wealthy before they were celebrities, so there’s been no introduction of sudden riches to destabilize the families.