what if you don't want to update your iPhone not because you don't have the room but you like
I just don't want to update right I prefer doing it later like in a few weeks when all of the hick up are found
Then wait. In particular if you have yet to update to iOS 11 and still have 32-bit apps on your device then you should check very carefully to make sure you won't miss any of them when you update. Rolling back is not an option. See http://saintlad.com/check-32-bit-apps-installed-on-iphone/ for example on how to check.
tt2