I get it. 4 years old is a threshold. After that you can reason with them. Before that they are just mini terminators.
I guess parenting is a bit easier if your interests/work align with the kid’s interests. But if not then it’s going to be tough, because parents only have time to do one thing extra, so they either have to ignore the kids and do what they love, or forfeit what they love and do what the kids may or may not want.
And then most kids are average in most of the ways but have sparks here and there, so it’s again the question of “do I invest here for a bunch of money and one year or just skip for the next?”. My father was very into building me as a pianist and a math wizard from early on, neither of which I had strong interests in, but nevertheless I dragged on for many years. I think he gave up the Math part when I was in early middle school and the piano part when I said I don’t want to go to a music school.
I wouldn’t be surprised if I cost him a whole career. He was one of the top Mathematicians in my country back then but he didn’t publish much after I was born. All for what? I don’t want to repeat his mistake.