They might all have one but if not, get one that has a seat belt cutter on it. And keep it in the front console, not anywhere in the back or in the glove compartment.
I knew someone (an acquaintance, we weren’t close) who died in a crash because their seatbelt got stuck and they couldn’t get out. They had one of those cutter hammer combos but it was in the back seat. Absolutely nightmarish.
One can only hope.