Have you been told not to test your blood sugars?

Appreciate erring off topic a little so let’s be careful but in the context of why told not to test, it is linked towards the same issue, what the guidelines tell doctors to do. Remember they are general practitioners and not experts usually (some exceptions where dr are diabetic specialists, if you are lucky at your practice)

In general in the UK it’s because it’s NICE guidelines and rules. Probably a cost measure (whole different argument there but let’s not!). Doctors are led by the guidelines, funded and controlled. There may be some leeway, I’ve never really checked, but in general control of what can be prescribed isn’t down just to the doctor

it’s also not just insulin takers though, it should be any drug that has a hypo risk and there are some of course not insulin. Whether that’s a matter of course or something you need to fight for though is a different matter