I grant that there's a world where, because the vehicle is parked on the sidewalk in front of the house, this caregiver can watch it like a hawk while also doin

I grant that there's a world where, because the vehicle is parked on the sidewalk in front of the house, this caregiver can watch it like a hawk while also doing their job, and the would-be burglar knows they are watching, and so does not break into their car. It does not seem likely to me, but it's possible—maybe this is why only one person gave this safety excuse for parking on the sidewalk.