[Robelius]

You could also hit your head after tripping while walking, but people don’t wear helmets on walks. I think the point was that there is a comfortable level of risk people are willing to take. If you remove cars from the equation, then the perceived risk is much lower while biking.

[taeric]

Falling on a stationary bike is a lot easier than you'd imagine. And the extra foot off the ground that you will be, can easily add to the damage.

I remember when I first started using clipless peddles, you free the foot on the wrong side, and odds are high you are hitting the ground. Stupid easy to do.

[phonypc]

Who's using clipless pedals to putt around their school campus?

If you're doing some sort of recreational/sport biking, then ya, a lot more people are going to agree you should be wearing a helmet.

[taeric]

Fair, though my point was more that experienced riders that use clipless are still prone to falling.

Around campus, problems from not balancing with a backpack are more likely.

Though, I do mean to say I don't think it is a certainty. Just that it is more likely than you'd think. And helmets are good at low speeds. They are not just a high speed protection.

[bradlys]

This is a trivially small amount of people. If it wasn’t - people wouldn’t even bother with learning how to clip in. They’d be like, “oh no, clipless pedals is what killed my pa back in ‘04.”

[taeric]

I have yet to meet anyone that hasn't at least come close to falling on clipless peddles.

[bradlys]

Falling != death.

[taeric]

This seems a bit of a non-sequitur. Falling from a bike is enough to cause head trauma. The claim here is that a helmet is useful and effective, not just from a moving bike, but from a stationary one. Adding to that, merely mounting a bike is already a greater risk of falling than most folks do.

Is it a certainty? Of course not. But, by that same argument, seatbelts are useless the vast majority of the time. Indeed, on most moving vehicles I'm on (busses/trains), I don't wear them. Not even offered in many cases. I still support and recommend them where they are available. Same for helmets.