Basic computer knowledge is not hard to learn if the person has an interest. So it's not limited to online gambling. Just like my mother, a 71 year old, she don't know how to use smartphone at first because she's not taking time to learn on how to use it since she has no interest. But when she became interested on uploading random videos of her as a vlogger, it didn't took her so long to became a pro using her mobile phone (even her laptop too).
Thus, what i'm saying is, though online gambling is the reason for some elders to learn about computer, the point is it depends on their interest and it's not only about gambling. Because there are other reasons for them to exert an effort to learn if they find something where they're interested in.
Yes, of course, every person who wants to learn something, of course they have to have a high interest in learning about that thing, because if someone doesn't have interest, of course they will find it difficult to learn about the field they have to study, without interest, of course they will find it difficult. to be able to try to understand the field they are studying and of course they will not be able to achieve satisfactory results from what they are studying.
For some people who want to gamble online, of course they must first understand how basic computers work so that they will be able to access gambling on their computer and of course this is not difficult if they really have the desire to try it.