Oh I think we would. But at the moment I think that living on Mars would be almost the same as living on the bottom of the ocean - both would require spending all of the time inside pressurized containers, looking outside through glass. Yet the perspective of looking at the ocean floor is incredibly boring, but perspective of looking at Mars' surface is exciting? Don't get me wrong, it would be AMAZING if we got humans to Mars. But if we are to live inside plastic structures, we can do it just as well on the Moon, which is much easier to reach.
We could. But there are serious health issues associated with living long-term in low-g environments and anyone who spent their whole life there would probably never be able to visit Earth.
