Facebook's and Instagram's main source is #PacificAsia. For Facebook, it's the Philippines and the Filipino diaspora. For Instagram, it's South Korea, mainly for celebrities and brands. Indonesia, Viet Nam, Thailand, and Japan, are huge markets as well.
Bluesky

Bluesky Social
These markets are so huge, and governments in Pacific Asia rarely have [c]laws that can force Meta to do this and that, they actually turn a blind eye to underage accounts (which is against their precious "Community Guidelines").