If you are high income, then this won’t affect you at all. Your kids will be doing calculus and algebra early because they enjoy it and are probably good at it. It’ll just be outside of school.
Only if the parents are also highly conscientious and heavily invested in their children, which is not given. I've encountered a number of people in my career who are being under-utilized, because no one pushed them in their education. Not everyone has internal motivation or parental structure, unfortunately.
