Or whatever man. The post I responded to said they wanted a robot that could do 80% of human tasks. It's easy to start naming things that a human can't do, but actually think about the tasks humans perform on a day to day basis and the environments they perform them in. Could it ride in a car? Anything that can fit on a car seat can. Dogs, grocery bags and even human babies all fit very comfortably in any car. Could it take the stairs? Maybe, but at my work we don't have to take the stairs.

The conversation is a little reminiscent of "before the car was invented, if you asked what people wanted they would have said a faster horse". If robots became popular in day-to-day, it's not hard to imagine that we would make space for them in our lives anyway. Cars can't traverse the kinds of terrain a horse can, and they require fuel so we have roads and gas stations. If you made a robot that was actually helpful and couldn't take the stairs, you'd start installing dumbwaiters in buildings.