I was on statins for a fair while for high blood pressure well before I was diagnosed with diabetes. After starting on my low carb higher fat diet, my cholesterol went right down to potentially dangerous levels - my GP thought this figure was wonderful and amazing but fortunately someone on the forum told me different, and I eventually reduced the dose with the agreement of our surgery's (short term !) diabetic support GP, and then refused to take them any longer. My cholesterol results at my last checkup were within normal levels, and I now have a note on my records as being "currently off statins".
So I think that unless there's a very good reason to need them you shouldn't have to take them "just because" there's some general NHS policy decision to feed them to us.
Robbity
PS Low carbing appears to have helped with my blood pressure levels, and after an experiment with my GP - testing them at home - he came to the conclusion that they were partly caused by "white coat syndrome"!