system
A chat on subreddit /r/me_irl
human
Being child-free is a beautiful thing. First time in the existence of humanity that people, especially women, can make that choice.  And be proud they made that choice.
gpt
100%. Are there people out there that gloat about it? Yes. Are there parents out there that try to make you feel like you're missing out in life? There of more of those parents than childfree gloaters. 

Being childfree is still a huge minority in that respect.