Babysitting is cheap if there are enough aunts and uncles (or trustworthy teenage neighbor girls) around, but in Western countries many of us don't have siblings or moved too far away.

Yeah definitely not something to ignore; growing up we'd have grandma and a neighbourhood friend baysit us. Now, I moved far away from where I grew up because the jobs are better, but I'm left without much of an (unpaid) support network. But that's a bigger story than a random internet comment.