I don't know why Google won't let me uninstall an app that's going to be defunct soon?!? Google warns me not to use Hangouts, that it's being replaced by Google Chat, yet it's impossible to uninstall it. I don't use the app anymore. I never used it with anyone (except my brother who liked it for some unknown reason and only while we were both home and there was wi-fi. It wasn't dependable anywhere else. None of my friends or other people in my family used it.