"There's no one here to enforce it if you didn't want to," Jack admits. "Besides me." And it might get tedious if he has to inform everyone around of who he is and what his title is, and remind them to use it.
Because those are a lot of cars parked on the road, which suggests a lot of people. And from what he can see here, many of them aren't of brands he's familiar with, even if some of the shapes look familiar. He is definitely further away from home than he ever has been. Maybe they're even across the ocean. "Have you even heard of Gilboa? Or Gath?" he guesses.
Re: I
Because those are a lot of cars parked on the road, which suggests a lot of people. And from what he can see here, many of them aren't of brands he's familiar with, even if some of the shapes look familiar. He is definitely further away from home than he ever has been. Maybe they're even across the ocean. "Have you even heard of Gilboa? Or Gath?" he guesses.