Computers are only tools.
Unlike mechanical tools that aid in physical labors and provide tremendous working power, computers are tools of the mind. They facilitate the simplification and expedience of otherwise laborious mental tasks. The similarity between these tools is primarily their ability to magnify and control.
All tools require a sufficient level of experience to be used with the highest efficiency or safety. It is my opinion, the same can be said about Computers.
Anyone can learn to use it effectively and safely, with only an understanding of the fundamentals. To some it might seem a daunting task to learn or perhaps completely uninteresting. But to both I’ll say the task is not so great that your mind is unable. The fundamentals are not much different from the things we learned in school as kids, basic math and pattern recognition really.