So let's say you have an Uncle Jack, and he has a horse farm. When you were younger he'd take you riding. Naturally he'd have to assist you up and down on the horses until you were of an age and size to be able to ride without his assistance.
So the years go by and Father Time is finally catching up to all of us, Uncle Jack included. The question I have to ask is simple. When he can no longer safely dismount alone, would you help your Uncle Jack off his horse?