just check /r/femaledatingstrategy demographics ... this just explains everything (more subreddits with overlap not in this picture are "childfree" and "solotravel")

https://preview.redd.it/0oa6wnq7t3t61.png?width=619&format=png&auto=webp&s=687b30821292f48963c7d12479d80d4bc252fd0f