That's certainly a good point. I once picked up a manual on my car so that I could fix small things myself and wouldn't be helpless, but I defer to professional

That's certainly a good point. I once picked up a manual on my car so that I could fix small things myself and wouldn't be helpless, but I defer to professionals for complex problems because it's not worth my time to learn how to do it myself if I'll only do it once or twice in a lifetime, and if the time it takes to do it is nearly as much as the time it takes to have someone else do it. I guess the ATM example caught me because I feel ATMs are such a big time-saver!