Of course regulations exist in every country but it's the extent to which they limit competition resulting in poor service and high prices that affects Canada particularly badly. For example, tv/internet services Rogers/Bell provide are abysmal compared to the likes of Sky and they charge many times more too. Same with cellular plans. Really though we're getting side tracked, I do not think border guards demanding your phone will become commonplace in every country like you say because of both privacy concerns and because of the fact that people with malicious intent are not going to be caught out. This is not like a car where drugs may be hidden inside the trunk, you can completely wipe the phone and just get data back as soon as you exit the airport.