I was talking to some work colleagues today and it came up in conversation that they got their OH to turn on their 'share location' on their mobiles so they could see where they were. Apparently it's useful to know so they can get the dinner on the table ready for them 
Aside from the whole being a domestic dinner slave issue, I think asking your OH to share their location so they can be tracked is a massive invasion of privacy. However the counter argument was that if they didn't have anything to hide they shouldn't mind....