It's now preferred that my phone not make any noises at any time for any reason. Is there any situation where it would be preferable that your phone make noise

It's now preferred that my phone not make any noises at any time for any reason. Is there any situation where it would be preferable that your phone make noises? Once you think of it like that, I think the use case is more clear. It's not about "important" notifications or calls -- it's about all of them.