This is not a reasonable solution. There are many situations that it is necessary that I can know when someone has called or messaged me while I am driving, un

This is not a reasonable solution. There are many situations that it is necessary that I can know when someone has called or messaged me while I am driving, under which circumstances I need to pull over to the side of the road to respond/acknowledge the call/message. Cell phones these days are sometimes necessary, and there are situations where it is absolutely necessary that people respond to them, as long as it is done in a safe way, ie. pulling off the road somewhere that it is safe to do so. You can restrict people from answering or responding to phones in certain situations (ie. driving), but there is absolutely no situation where you can restrict people from having them on or being alerted to them. In the case of movie theaters or even driving, a vibrate in my pocket is enough to satisfy this requirement, but by no means do I respond to it without putting myself into a safe situation, or a situation where I won't disrupt people, before doing so. The problem with coming up with solutions to problems is that you need to also think about all the possible repercussions of said solution.