How to Add Someone to a Birthday Group Chat

There's like a Decision-making process where the clue gets added into these birthday group chats. The general rule of thumb that I've seen is if a friend's so Doesn't have a birthday gift pool chat for her like for that person Then that person also wouldn't be added into everyone else's birthday gift pool chats Which kind of makes sense because it's almost like a Kid, which is an emergency stash used by some Korean moms since they don't have like steady income.