If I agree to location, I should be allowed to select where abouts I want that to be
If I agree to files, I want to select a directory and what data it can access about those files (for example, it can't access exif from my photos, nor the file created date)
If it wants my phone log, is it okay it can take every record ever made? Even ones from years ago?
Apps can take your entire contacts list once given permission, just a simple for each loop and upload to a server. I imagine once you've granted access, even if only for 30 seconds that's enough time to parse and upload the information elsewhere.
It's incredibly worrying how giving permission you're not aware of just how much data you're essentially allowing access to, if apps were required to select more precisely what they want, for how long and why and how it will be used, more people would hopefully be encouraged to think again.
Now with cookie popups across the web everyone just clicks "accept! Take all my data please!!". And often time that data you share is about others, so even if you are careful with whom you share information with, all it takes is one person to agree to share all their records on device and your carefully controlled fortress comes crumbling down...
Sigh.