Think back to all of your ancestors that came before you in a long line before you.

You have a flushing toilet. So did your Parents, and maybe your Grand parents.

That's it.

Recent Parent here, it's not that hard. Most "costs" of childcare are optional. If you are limited in your employment capacity to structure your work how you want it, then you need to have good relationships with your family, or have a Girl who does. Because that's where the help comes from.