Sorry to say that I haven't heard of any ice/water in-door dispensers that are sensor operated due to the fact that if something came past the eye you would end up with water all over your floor.
As for the idea of germs, remember that when you get the ice or water from your fridge, you don't personally touch the buttons, the glass you are holding does. Also, it's not like you won't know the people in your home that are using it.
