> and he still struggles with click/double-click distinction.
Have you tried teaching him that? I highly doubt an old person, especially one with engineering background, will have trouble with understanding the distinction if someone bothers explaining it to them.
Or in general - it's surprising how much non-tech people can understand about technology if someone bothers to sit down with them and explain the concepts to them. Usually the reason they don't learn this stuff themselves is the typical human impulse of "if I haven't figured it out in 3 seconds flat, it's too difficult and I won't understand it".
Have you tried teaching him that? I highly doubt an old person, especially one with engineering background, will have trouble with understanding the distinction if someone bothers explaining it to them.
Or in general - it's surprising how much non-tech people can understand about technology if someone bothers to sit down with them and explain the concepts to them. Usually the reason they don't learn this stuff themselves is the typical human impulse of "if I haven't figured it out in 3 seconds flat, it's too difficult and I won't understand it".