I think the more meaningful difference is life before and after mobile phones. This is one of those technologies that changes everything , and it's why mobile phone penetration far exceeds internet penetration -- although smartphones are rapidly closing the gap. As a trivial example, consider meeting a friend. Before, you used to agree on a time and place, and if they didn't show up you had no way of knowing if they…
Its funny how many 90's sitcom episodes were based on this exact premise - the uncertainty of someone's location, not being able to contact them, etc. It was a major problem back in the day.
A major movie/sitcom trope, yes.