Well, in this world where everything has gone digital nowadays, I think age is irrelevant.
No matter how old we are, we are ALWAYS IN LEARNING MODE.
As for your grandfather, there should be no issue for him to go to a digital camera. He doesn't necessarily need to have a computer if he chooses to not have one.
Let's take a look and consider some factors. If you decide to get him, let's say, Canon SD450 5 megapixel camera. I think finding a camera with a large view LCD would be good which is about 2.5" considering his sight. Maybe find one with a 3" screen. Now with a 5megapix camera, you can get him a 1 Gig memory card which would give him room to shoot amost 400 pictures (which I don't think he would max out).
Now there's a couple options here. He can go to a local outlet that will process the pictures, just like film, from the momory card as most places are doing now. If that is not possible, then assuming you go to visit him from time to time, you can help him get the pictures from the camera and process to prints. Even if you get him two 1 gig cards... that is room for about 800 pics. I wouldnt think he would get to the second card, unless he loves taking pics
What do you think?
Here's a link to give idea of card capacities
http://www.crucial.com …y/guides/flash/page02.asp