The question is broader today.
A sing;le woman can go to a sperm bank and get impregnated can she not? Or a single man can adopt or pay a female surrogate to carry a baby if he can afford it.
With the passing of the tradition of the nuclear family child support increasingly becomes a govt and tax issue. Day care is now a 'crisis'. The old norm was to start a family the guy was supposed to be able to make a living and the wife took care of the hids during the day. There was a social stigma to single parenthood by accident or by choice.
A lot of this is not relevant. Another issue is not 'day care', but rather the balance between what people get payed , and the cost of living, Back in the 50's and early 60's, a man could get a non-skilled job, pay for a house, a wife, and two kids, and there be enough money that the wife could choose to stay home with the kids. Then, wages did not keep up with inflation, and the middle class and lower force the conditions where having a two income household was no longer optional to be able to afford children. That is what destroyed the tradition of the nuclear family, and that's the need for both parents to work,and traditionally, men get paid more than women. Unless you have single person with plenty of cash, the sperm bank/surrogate option is not viable, there is something known as 'finances' that get in the way. that makes that line of argumentation not relevant to the issue at hand.