I agree with you, but if you dial back the work you won’t achieve as much career-wise. I’m at the career stage now where I can start looking to do less and delegate more. So hopefully I can achieve what you describe! However that’s only possible after 20 years of the kind of long days and heavy schedule most people would run a mile at.
Not all careers will take that long though, I've only been in mine 10 years, it's just a sector/employer that very much values work life balance and flexibility.
there are many, many jobs (careers?) that mean you can't just switch off at 5pm, whether or not you have dc. Not being able to do that doesn't mean you don't have a good work life balance, or a good balance of being a parent and working outside the home. Lots of people get great satisfaction from those jobs - completing a project or sealing a deal or solving a problem or helping a child learn or whatever - those are the things that make that career satisfying and worth while.
Of course there are, but for me, going back to the description described which was working evening, weekends and not being able to take that sunny day off isn't the "balance" I'm striving for, if I did that I'd never see my kids or husband, or be able to unwind by myself. That's why to me, "having it all" is having a satisfying and worthwhile career without having to sacrifice my own time and my family time, having the ability to keep work to 9-5 (and flexibly) as that's when others in my house are out, is important.