When I started biking around 4 years ago, I rode my bike for at least two years without a helmet. That would be around 10.000 km without one. I never had an iss

When I started biking around 4 years ago, I rode my bike for at least two years without a helmet. That would be around 10.000 km without one. I never had an issue. When I started wearing a helmet I started breaking my bones, because I started to do riskier stuff (which was the reason for starting to wear a helmet). Then I got used to it and bought myself a better one last year, instead of the 20€ one wich I initially had. But I don't ride my bike in traffic on a street, so those first two years were never really a high-risk scenario.