"I'm good a computers" isn't really a good marketing strategy I feel for job hunting.
I know I am "good at computers" too. Because I've seen people try to use a self-service kiosk at Dunkin' Donuts.
To be clear, I don't think people are less because they can't use a touch screen. I just think there are not a lot of people who are constantly submerged in techology like I am, and have not interest in using anything more than a tv remote.
Maybe it's not the techology at all. Maybe they need more time to make decisions about what they want. That's possible.