Earlier quoted context omitted.
It's interesting to note that you consider having children a selfish choice, because in some cultures, not having children is considered selfish.
I think both options are selfish. You don't do it or not do it for humanity, society or whatever random shit you make up.
If both are selfish, then neither is selfish. You conveniently deconstructed the concept of selfishness and I like it a lot.