Barney, the true definition of "selfish" would be the people who breed irresponsibly and then expect others to pay for their kids.
You don't need a degree in engineering or a net worth in the millions to go to the Department of Health for a depro shot or buy a pack of condoms.
If those kids were to get hungry around 3 PM, it's neither my fault nor my responsibility. I shouldn't be expected to shortchange MY children to pay for another's.
Selfish?