That’s great for you. But it’s not an option Mrs P has. Nor does it really make sense for the taxpayer to subsidise all these people, to get all this education, so they can put back into society, and then stop using it as soon as they’ve got 6-7 years of real work experience and have a kid.
(I don’t really have an answer here: just that your situation is not my situation or megz’ situation. Childcare is a necessary evil for a very very large number of people)
The nuclear family is a relatively recent phenomenon, remember. Go back a few hundred years and there was a lot of shared childcare in the village or town, or extended family. “It takes a village to raise a child”. Still happens in many cultures.