The two things I told my kids :
1. We have plenty of money
2. You can't have any of it.
If you want to ruin your kids, give them money.
My grandfather was on his own from age 14. My father (his son) joined the Marines at age 17, and remained on his own.
I was a handful for my father. So when I reached 18, he said for me to get out, and try it on my own, since I thought I knew it all.
I crawled back in a few weeks, so he let me stay for a few weeks, but only with the understanding I was to leave soon.
Left shortly after that, after meeting a girl who I have called "wife" for 49 years. In the early weeks her Dad helped me find a decent job.
Engagement, marriage, baby, military conscription, GI bill, two degrees later, I have zero sympathy for the 20 and 30 something children of our society.