No Stairs! You must be a youngster.
I'm almost sixty, and consider having to go up and down stairs a healthy fringe benefit.
Of course if one is handicapped, that could be a problem--but in such a case what about those stair masters things?
The house I spent the greatest part of my childhood in was a one-storey.
My grandmother lived with us, and to keep the peace, my dad built her her own kitchen in the finished basement.
She was well into her eighties when she died (and no lightweight, either), but she went up and down those stairs all day with no problem.