Yes I can live my life day to day with out my cell phone. In my life its a luxury I work for and not a necessity. I can remember a day back in the 80's when no one had a phone every where they went.
I dont know the details on how they work the payments but I am sure they can be turned off. Also the way they have closed down national parks and memorials. A guy I work with just came back from the Smokey Mountains, all I heard about was how they couldn't wait to walk the trails. He just came back and the park was shut down. Gates closed off, Rangers patrolling to make sure no one entered. Tax payer funds built those parks, why shut them down so you can make a phone call?
Also the the only government issued phones I have come in contact with have been android phones. Regardless its a waste, sorry most of the crap is a drain on the system and unregulated.
Additional: I have seen people with 2 and 3 cellphones at least one was a government issued phone. One person had 2 issued phones. Now, explain to me why or how that could happen. Its a waste and unregulated, I am not happy that money is deducted from my check to pay for such amenities.