If you have multiple Android devices, you might like to keep the experience about the same across them. If you download an app that's useful on your phone, there's a good chance you'll also want that app on your tablet, or even your Chromebook. Likewise, if you no longer find an app useful on one device, you likely won't want to keep it on your other devices, either.
It can be annoying, however, to uninstall the app from each of your devices individually. Maybe you're using the app on your smartphone and you decide to delete it, but forget to delete it on your other devices. It might live on your tablet or Chromebook for a while before you realize you want it gone. That's annoying, but, in extreme cases, it can also be risky: Maybe you're trying to delete an app that was later discovered

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