I think I posted this before, but my here it goes again: In the one save where I play with lifestyles a Loner sim developed the People Person lifestyle from being friends with his husband, the baby in the crib, his cousin's dog, a vendor in Selvadorada and his deceased father. Since he's a Loner, this is probably his subjective idea of being a people person ("I talk to that vendor EVERY YEAR! I'm sooo social!"), but objectively this should count as a close knit lifestyle.
There needs to be a bigger middle ground between close knit and people person, with most sims falling into this grey area and only a rare few becoming people persons or close knits.
