Helmets help in single bike collisions/falls, it's true. You'll see more people wearing helmets when the bike path are icy. "Wear a helmet" can be good individual advice depending on the context. But we all have hair triggers because of the use of helmet laws to end bike shares or blame victims -- that driver of an SUV ran the cyclist off the road, but was he wearing a helmet?? Just look at the commenter above saying they'd wear a helmet even in a low risk situation, "because they're not a fucking idiot." That language furthers the perception that riding a bike is always a dangerous activity, and anyone not wearing a helmet had it coming...