All this is to say... it's not about fast or slow. It's about different and finding what works.
And there are counter-examples, too. I worked with a guy who ran a global business unit—a couple billion dollars, probably—and had 5 kids. Might he have been even more successful had he remained childless? Maybe... who knows. He was good either way.
I volunteered with a woman who is now the CEO of a Fortune 500 company. She brought her daughter with her, and doing social good as a family was an important part of her personal and. professional life.
If you're good and driven, it doesn't matter.
So I don't mean to be a pedantic ass here, but the "I'm a CEO and I have a wonderful home life" is probably the exception, not the rule. The reality is that you can't be a CEO on a 9-5 schedule. You probably have a lot of help for all those times you have to travel, stay late, leave early, etc. Something is going to be scarified.
That being said, you can have a successful career without becoming a CEO or running a global business unit. So it's not 100% career or 100% family.
My point was the simpler one that having kids in of itself doesn’t hold you back.