I do see what your saying, but it can't be wrong to hope it doesn't come to that. The whole idea reminds me of that scene from Wally, where everyone is too lazy to do much of anything and I dunno about some people, but personally I get pretty cranky when I'm stuck inside for too long.
Well I will say we're not quite headed for Wall-E yet. It's a lot like how some people thought we wouldn't walk anywhere or ride horses anymore once we all had cars, but we still do those things. But nothing is completely changing yet and won't happen over night.