Children are not unaffordable. They require sacrifice. In my culture (within the U.S.) it is common to have 4+ children, often in single-income, middle-class homes. Raising 4-6 children on an income of $60K doesn't attract any attention at all.
To read posts like the gp that claim they can't afford a single child seems ridiculous from my perspective. I grant that my perspective is ignorant of their specific circumstances. But my wife and I welcomed our first two children while we were starving college students making < $20K/year.
I don't own a Tesla. My children have worked to pay for their college debt free (as did I). I don't have a home in the Hamptons. I don't live in California. I've never been to Europe. My kids haven't gone to Stanford.
But I have the most amazing children in the world. I wouldn't trade any of them for a Tesla. Or a MBP. Or equity in whatever startup you are slaving away at.
I am glad there is Tesla in the world, and people with MBPs. I don't think my choices are necessarily better than your choices. I don't regret my choices, and I flatly reject most claims by people that they don't have a choice.