My doctor had to fight to get me one. I workout and was highly insulin sensitive (she made me workout less and gain some weight by doing less cardio - drives me nuts, I liked running). The insurance companies didn't want to fork over for the upfront cost, even though I had been to the hospital several times for low blood sugars. This included a stroke caused by a severe low blood sugar (yes, I lived alone at the time, pre CGM. Coworkers called a friend who had a key).

Granted this was 4 years ago, so I'm unsure how things have changed. The CGM is a game changer. I wish I had had it earlier. Would have kept me (hopefully) from a lot of issues and putting my friends and family through unnecessary pain.