Overkill - opening the door

I know it is nice and friendly to hold the door open for somebody behind you as you enter a door or to open the door to let someone pass by. Specially to the elderly, sick, pregnant or anybody who will obviously have trouble opening the door themselves. But some people take it to the extreme. Even if the person is many steps behind, they would still wait there and hold the door. Even if the person is a very able bodied individual clearly capable of opening the door for themselves, they would still go out of their way to hold open or open the door. I say OVERKILL with the politeness.