I do walk through it, it's painless (1 extra tap on screen) and it's exactly to not have FB apps on cell phone and not have ads displayed. I use FB less, which is good for healthier life. FB long lost its glamour, it's just another RSS news feed about friends/interests.

Same for my fiancee.

More and more people (myself incl) are not using fb app. Reasons:

* all time location tracking

* inability to block ads (firefox allows to block ads on android)

* making it harder to induce compulsive fb usage (its addictive)

* battery usage (this is huge, try it)

Also you don't need to let FB get the entire gamut of permissions possible on the phone.