I do this too but not for this reason. I just find most notifications are annoying/spam.

Agree

This is my favorite part of iOS UX over Androids. Push notification settings for all applications is in one location and easy to set. I change my notification settings multiple times a week. {Turn email sound/homescreen/banner off for the weekend, disable everything but phone calls for meetings where I am expecting an important call, turn off notifications when in a large group messenger chat, etc}