I think one of the reasons that a lot of successful founders are in their mid-40s is because they combine 20ish years of experience with an empty nest after kids are out on their own.
That just tells us the person wasn’t a good parent either. Your comment assumes the only way to parent is to manipulate, patronize, etc. That’s just one perspective though.
There are other ways to parent that are actually fantastic management training - figuring out how to think from another human’s POV, acknowledge their frustrations, help them build the skills to handle their feelings, etc.
It turns out great parenting is to a first degree about great relationship skills.
You can achieve that trivially with such young kids by simply leading by example, not having snacks and junkfood at home and so on. We eat a lot of healthy stuff, so our kids do. You are still their world and define many patterns they will follow later subconsciously.
That doesn't translate that much into say teens but it lays a solid foundation.
Nothing to back it up, but it makes sense to me.