I come from a more privileged background with a lot of family support, so I can see the good (stability and guidance allows you to learn, socialize, grow, stay out of the death spiral of the penal/judicial system) and bad (overdependence on parents, growing up in a bubble, not learning lessons in a visceral/hard way that will stick with you, mistaking luck and hard work) from where I've come from.
I appreciate you sharing your personal perspective, and I agree. I wouldn't want to provide any monetary support for my children post university (unless it is more of a business transaction with stipulations on what it can be spent on/payback period), but would want to provide stability and travel/educational experiences growing up, and be there when shit happens as it usually does
Per your privilege comment, travel has been the most helpful for me to get outside of my bubble, so I think you hit the nail on the head. It's like the fish swimming in water parable:
There are these two young fish swimming along, and they happen to meet an older fish swimming the other way, who nods at them and says, "Morning, boys, how's the water?" And the two young fish swim on for a bit, and then eventually one of them looks over at the other and goes, "What the hell is water?"