[ZeroGravitas]

You might be interested in this link:

http://www.cyclehelmets.org/1019.html

"Many people who wear helmets can relate their experience of a crash which leads them to believe that a helmet 'saved their life'. This is a very common experience - very much more common, in fact, than the actual number of life-threatening injuries suffered by bare-headed cyclists. Yet there is no evidence that helmets save lives or prevent serious injury at all across cyclists as a whole"

The PDF linked at the bottom is good too, it's written by a guy that runs a cycle helmet testing lab.

http://www.cyclehelmets.org/papers/c2023.pdf

It's an in-depth piece and I don't want to do it an injustice by over-summarizing but here's my take: helmets by design and because of basic physical limits on their size are good for when you fall off a bike onto a flat surface at low speed, not for collisions, certainly not getting hit by speeding cars. Therefore they make a lot of sense for children learning to cycle or others prone to falling off, and much less sense for average cyclists.

[marcusbooster]

Well to complete the anecdote, her tire go caught crossing some railroad tracks (she was an experienced cyclist), she fell and hit her head on one of them. Her doctors praised her wearing a helmet, so I'm apt to take their advice over yours.

[RyanMcGreal]

When trying to decide how a policy will affect a population, you can't reason out from a single anecdote. Remember, the plural of "anecdote" is not "data".

[marcusbooster]

When implementing policy you need to deal with politics. These decisions are not made in a computer on data alone, every bill will hear numerous testimonies and requires the judgment of lawmakers.

What you're proposing is counter-intuitive to most people's everyday experience, ie. wearing protection is safer than not wearing it. Sorry, but if you really want to convince people you are going to need more than data, because the other side will have their own stats - and crying mothers and all that jazz.

[RyanMcGreal]

Recommending policy based on anecdote and emotion is a problem. The solution isn't to do more of it.