Why don't parents make their kids wear bike helmets? There are two kids ages 4/5 and maybe 7ish who are happily tooling around my cul-de-sac, racing each other down the street, etc. with no helmets. They live around the corner. I have never once seen them wear a helmet. Just, why? Are you lazy? Just don't care? I'm glad they are out being active and riding bikes. I'm glad you're allowing them that freedom, but seriously, why don't you care enough for them to wear helmets? I'm in a pretty upper middle-class development, so these folks can afford it. I just seriously don't understand why people don't even bother to do the bare minimum to keep their kids safer.