The google intent system makes it easy for apps to call other apps. Things like location -> map. Or need an barcode scan -> scanner pops up. Need an email ->

The google intent system makes it easy for apps to call other apps. Things like location -> map. Or need an barcode scan -> scanner pops up. Need an email -> email client pops up. Click on a movie and youtube or netflix pops up. So sure, people may think "I'll never need that apps" without realizing that it breaks opening that kind of file/website/link. The bindings between intents or filetypes and the apps that open them is a rather common support issue across numerous platforms. For whatever reason it's pretty common for users to think ... "I'll never need excel on this computer", but then be rather irate when they can't open an excel attachment.