I couldn't really vote because my 95 yr old mother has macular degeneration and can't see wll enough to do lots of things. i did give her my first ereader which she loves and has no trouble working although I download the books onto it. I'm sure if she could see well enough that she could use a computer competently (yeah I know there are aids for blind people) but as I don't live near her I can't be there to help out.
As a Mum who is probably in the age group you are targeting, I'm not a techno wizz unless you compare me with most of my friends
I've never learnt any programming techie sort of stuff (what do you have sons for after all?) but I can use the computer . And I'm the one who tunes in the TV and PVR etc.