In the city where I'm based, there are several places public transport vehicles can't access, in cases like that you'd be forced to walk. Even if you are going to a far distance,
Depending on one car isn't easy, in cases of fault, the family will be stranded. I'm also at the positive end that such a law shouldn't be enacted on families.
Even me too, I have been to a place where I have to trek a distance because public transport can't access the area.