[A] Do an advanced driving course, then [B] drive like a granny anyway.

I do not have a citation but I do recall reading that taking advanced driving courses was not cost effective because the increase in over-confidence countered the modest improvements in skill. So A made you less likely to do B.

We do need a citation for the claim that an advanced driving course does good. And we need to be aware that people running such courses are not disinterested parties.