Also, I think many many people who have T2 are actively discouraged from being engaged by the medical profession who say there is no need for them to test - just alter your diet, eat healthily (with no real advice, or even quite wrong advice), lose some weight, take these pills and come back in 3/6 months and we'll do a blood test. At which point the poor confused patient goes away and happily takes the prescribed pills. Some even try to eat "Healthily" i.e. follow the useless "healthy plate", go back in 3/6 months, get ticked off for "not trying" because the "Healthy Plate" does not work for either weight loss or controlling diabetes. Become discouraged and lose interest. Can you blame em? We see it all too often in this forum.
So many times I have spoken to T2s and they don't know their Hba1c or even what it is and they say "Dr says my numbers are good" - they don't want anything more to do with their own health or well being. I have stopped trying to tell friends who have being diagnosed, otherwise I become a social bore and/or they don't believe me because "who am I?"