Why does this error message keep popping up?!

[AC Question]

Randomly, at least 4 or 5 times a day, an error message pops up on my screen:

"YouTube has stopped.
Close app
Send feedback"

I don't even have YouTube on my phone! I've sent plenty of feedback, my choice words getting louder and more colorful as this keeps happening. This started popping up around the time I last updated my system, don't know if it's correlated or not. Why does an app I don't have, keep crashing?!

 

[B. Diddy]

Welcome to Android Central! Which phone? YouTube is often preinstalled, so if that's the case, it's on your phone unless you rooted it and then uninstalled the app.