These issues are real.
My Dad is 71 and loves his computer. However, I have to admit that the my laptop's touchpad gives me tendinitis when I use it too much. I had to stop playing so many games!
Buy more. In most systems it is less than $50 to double the amoun of memory. /s off?
I make some nice extra money each month by doing basic admin tasks for some older folks who love their computers but just don't know how to do some stuff.
I also teach them something different each time and answer any questions. The cash is good and they are tickled pink to have their own "geek squad" to call on.
LogMeIn.com is a Godsend.