What places in your country are people not allowed to use phones?

In China, there are definitely places where using phones is restricted, and I think it's mostly for safety and focus. For example, in hospitals, especially in intensive care units, phones aren't allowed because they can interfere with medical equipment. I remember visiting a friend in a Shanghai hospital, and they were very strict about this rule-it was clearly posted everywhere. Another place is during exams in schools or universities. When I was in high school, phones were completely banned during exams, and invigilators would walk around to make sure no one was cheating. On the other hand, some places like libraries or theaters have looser restrictions-they just ask people to switch their phones to silent. So, I think it's really about balancing convenience with the need for safety or concentration in certain environments.