I see people talking about ‘all of their OCs’ having like, 5 or 6 OC’s in different universes…

Why so few? Is this normal? I have like 3 at least for every fandom I have ever been in. I dont sit and write em out but I can remember them and they have personalities and history and I make tons of stories with them in my head. o.o

(To be fair, a lot of them do kind of cross over into other fandoms and I just tweak their character or history a bit to fit so in reality I probably have like… 15?)