And the life I have would just not have been possible if I had a child back then. Not even if I completely sacrificed family time and attention back then, which I never would have wanted.
But I guess we have to agree to disagree. For you, being a younger parent worked out better. For me, I’m certain I got my child at the right time. In any case, I find OPs general recommendation that if you want children, you should have them by 30, to be ill-advised to the point of being harmful. Many people would benefit from waiting until later.