Of the top o' my head I can only think of one truly successful child star who had a fairly normal life that was far from what we see these days. She was an exception because she was exceptional: Shirley Temple Black. Doubtless there are more but I believe you get the gist of what I'm saying.
Hollywood, where you strip off the tinsel to find the real tinsel underneath.
What about Nathalie portman, just an example, but pretty much all moden young actors are doing very well? There have been abuses, well documented ones, but obviously some have learned from it and are doing it right.
Again tiger wood, mary pierce, williams sisters, iglesias son, bieber, etc have all been enginered to become entertainers or sport champions from the get go, doubt any of them regrets it the least.
Now if you prefer your own kids to become physician, teachers, "more respectale people" good for you, but somehow you re doing exactly the same thing than these parents, you re conditioning your kids , engineering them all the same. It s only personal bias that will make you judge them as having shittier goals than you. But both are doing what they know and like in the end.