12 penalty points ≠ ban

What I am saying is that you would be battling perception - it is widely accepted that the current limit is fair, I think people would view a total ban as unfair.

All of that aside it will have zero effect on the people who currently flout the limit.
alright dammit, based on the stats posted by Blue Quinn (and assuming that they reflect reality and are reliable etc), can you think of any arguments to justify not lowering the limit in light of the risk that it poses to road users?