Wood, I happen to be a retired 9-1-1 phone call taker. Trust me, there are a lot of folks who in the heat of the moment have no clue as to where they are. Thus, when the caller calls 9-1-1 it would be nice if my replacment had that info handy.
I do recall one caller on a freeway-side emergency phone (W/B I-94 at Mount Elliott, city of Detroit, MI) insisting she was SOUTH BOUND I-75 at the Toledo Exit
There were no motorist aid phones on I-75. Since I knew her call box number, I knew where she was (Sign overhead says "S I-75 Toledo" by the way)
IT was a fatal accident, Dumb and Dumber, who found seat bealth "too confining" or some such, were confined to their graves after going head first through the windshield of their car
I have had callers who knew only what road they were on, Not where (That too was a fatal accident)
And I've had people who were just, plain, lost call 9-1-1
NOTE: you control the release of location information EXCEPT when calling 9-1-1, and it's your choice to call 9-1-1 so in no way is it intrusive.
Several years ago when phone companies started offering caller ID people, mostly boiler room operators, cried "Invasion of Privacy, Invasion of Privacy" and some commnuities (And states) responded by making caller id block the default.
However I hold that if you are ringing my phone, it is you who are the invader, and I the invaded have an absolute right to know the ID of the caller before I pick up that phone. My state happens to agree with me.
Do you? (If not please give me your phone number so I can release it to 3,000 boiler rooms so they can all call YOU in the middle of dinner)
There is only one kind of person who has anything at all to fear from the government knowing where you are when you call 9-1-1, and that's folks like "Mr. Wee Wee Man" who used to call up and ask if we were willing to perform a certain service for his dog. Hundreds of times a night.
We figured out where he was, and then he ceased calling... Though I suspect when he calls folks he still uses a "Cell Phone" (it's just not cellular)