[Pristina]

It is not a globally suboptimal outcome. She chose to have 3 children without a strong financial foundation. This is why she has no money.

Groceries don't fall from the sky. Somebody has to make them. So the option here is to either take from people to give to people who choose to irresponsibly have children, or don't.

If you chose the latter, then the optimal reproductive strategy would be to breed as much as possible and have other people take care of your children. That is not a 'globally optimal outcome'