I always call if I'm running late for an appointment, or if I think I'm running late. But I don't go to concerts because there are too many people, it is exhausting being in a place with more than a handful of people.
Discussion
I am the same. A courtesy call doesn’t hurt and it shows respect for the other person.
If I have to go to a crowded event, I prefer the outdoor ones. Not really fond of cinemas. Dark places with strangers. lol
I also understand that sometimes it's better to reschedule if need be.
Outside is definitely better. We'll only go movie watching during the day on a weekday, most times we're the only ones there 😂. But I've found that I don't enjoy it as much as I used to, they have the volume cranked up way past my tolerance levels 👵.