Re: eh?
I had not realised it was standard practice to leave GPS enabled at all times, must be getting old.
Given the length of time that it can take to locate enough satellites to find one's position with any degree of accuracy it can be convenient to leave GPS permanently on. I seem to use positioning often enough that (a) it's a fag to wait for the GPS to do its thing if I keep turning it off, and (b) Google will know where I am most of the time anyway.
If I really want Google not to know where I am I'll turn the phone off, but that has its own implications for convenience.