Re: Nothing too extensive
I'm not sure that it is as rare as some people imagine. - there certainly are quite a few people of that age who are online. Though my mother doesn't do social networking, she does use it for email, online banking, submitting meter readings, and so forth.
She's often told me how when dealing with some companies, if they know her age, they automatically assume she won't be able to do things like send a meter reading, which is somewhat patronising.