The elderly are quite weak and they need help to get around.Hand railings are to be used around the house for the convenience of the elderly. Especially in the bathroom,where the elderly might not be able to get up from the toilet seat easily,and the need the help of a hand rail.
The floor is also slippery,and they need a proper kind of flooring so that they do not slip and fall easily when it is wet.Preferable floorings would be rubble(those kind of tiny stones that are not painful but yet produces more friction so that you don't slip)