Largely you are inconsistent. You quote laws that do not exist, then get a ****ty on when people don't believe you. Cell phone use on the ground for example - I dare you to quote me the rules, 99% of you are ignorant of reality. There are more rules about the use of HF radio by the pilots…
The reason you can’t use PCs or other electronic equipment during take off and landing (like it would actually make a difference) is to do with the IF in the devices. Do explain what that means if you can and why it would be a problem, or not, if you know the difference.
Most of you can’t which is why people think you haven’t a clue and don’t take you seriously. Don’t think your passengers are stupid, they are not!!