Believe it or not, there are quite a few people, including Seniors, that live on a boat. We see these boats moored in an intracoastal waterway in St Augustine and there is a marina, not to far from us, that have boats in slips with people living on them. Both sailboats and somewhat large cabin cruisers. We were invited on one cabin cruiser, that was in a rented slip, and it was pretty big inside. It was fully contained, meaning bathroom, small living room and fairly large bedroom. Most of these boats have a small boat, with an outboard engine, to take the owners to land for grocery shopping, laundry, etc. Some "live aboard boats" only stay in their slips or moorings, while others do go from one area to another, including onto the ocean. I was told that boaters that are moored, don't have to pay anything to stay there, while those that are in slips, have to pay monthly for slips, because electricity is provided with the slip. Could you live on a boat? I did in the Navy, but that was called a ship and, obviously, it was totally contained with everything.