When I was a kid we had relatives who were always late by half an hour or more. I remember my parents planning event with sometimes hours of buffer to account f

When I was a kid we had relatives who were always late by half an hour or more. I remember my parents planning event with sometimes hours of buffer to account for people being late with no mean to check if they'll even be there in the end. I think we are more sensitive to these issues because there's less excuses (even 'traffic was bad' is less and less an excuse as we get ETAs, it needs to be something really bad happening to get sympathy). We are more used to things being in sync (pre-checking shop opening hours or having average wait times for instance) and moving generally fast.