In person, I so agree that phone should be prohibited at some area.
It is because of some following reason.
First,your phone may disturb or destroy performance in some place such as teaching student
,or in the theatre,when others are concentrated with emotion from actors, the noise from your phone
cause disturb other audiences.
The last,phone may also cause lost concentration in hospital. It is serious effects. For example,while a doctor is performing surgery.It's not suitable at all for morals and ethics of doctors.
Sayumporn065
3EN