@AbyssalMonkey
True, but I didn't want to argue about the previous owner, since we know 
nothing about them. For all we know, they were completely antisocial and self-sufficient, with no reason to go into town. Or maybe they ran a brothel from the house. We just don't 
know. ¯\_(ツ)_/¯
If the author didn't show people mentioning it, it didn't happen. I'm a big believer in 'new criticism', i.e. judging something by what it contains and 
only that. Authorial intent is bullshit; if the author intended something, they should have put it in the story. Maybe we just have different views, you and I? 
 
While your 'Mama' idea would have the same result, it has a different 
intention than I did. Your original post suggested a mother to 'protect' the kids. I'm more interested in keeping them in line. They are in virtually 
no danger, unless 
they go out and 
put themselves in danger. Less 'guardian', more 'guide'.