i'm aware they are only sims therefore don't exist, but given ea keeps talking about representation and cultures i took a couple of minutes to wonder & search where could some ts4 premades "be" from, ...
Bella is not Hispanic, don't forget that she's actually Bella Bachelor, which is a British name, her parents Simis and Jocasta are also British names (imported from other parts of Europe, but have a history/presence in Britain), and of course her brother Michael.