12 penalty points ≠ ban

The risk of killing or maiming someone on a bike is pretty low. But OK, what's the downside to society of banning drink-cycling?

The arguments in favour are eliminating the rare pedestrian deaths due to drink-cycling, and saving the cost of scraping people up (same argument for motorbike helmets).

Wayward drunken cyclist wobbling all over road, gets hit by car/falls off bike.