The anecdotes I heard weren't about rushing home to their families, but rather, using the car for things like getting groceries. Apparently it was a very successful tool.
I find it very endearing to be honest. I know how it feels to be lost and confused, wanting to be home. When you're extremely tired, when you've lost a loved one... I feel for these frail older people.
And I don't see how a fake cafe or bookshop will attract them? They want to go home, not drink coffee.
A fake cafe or bookshop wouldn't really be any more useful than the cafeteria or day room that the facility probably already has.
In fact, they still use almost every corner as a bus stop.
Hell, the fake bus stop could probably be on a gravel path that doesn't actually connect with public roads, as long as the ends of the path are hidden behind trees.