Is it selfish to choose not to have kids?

I asked my mom, point blank, why she had kids. She laughed and said 'because everyone else was doing it.' That is the entire foundation of the pronatalist moral edifice: momentum. Most parents did not make a philosophical choice. They followed the script, and now the script's enforcers demand everyone else follow it too, so their own unexamined decision feels validated. I am not mocking my mother. I am just noting that a choice made on autopilot does not generate moral authority over people who actually thought about it.