[askvictor]

I generally wear a helmet as it is required by law where I live (Australia). The odd occasion that I forget to wear my helmet, I've found myself riding more carefully. I'm a very careful rider even with a helmet, but clearly, I ride more carefully when I don't wear a helmet.

[rbg246]

I've cycled both Australia and UK and I would say I cycle the same with and without helmet. In Australia I would be really nervous cycling without because there is such a strong culture to wearing and the enforcement of the law. In the UK (where it's not illegal) the first few times I cycled without a helmet I thought I was being dangerous and cycled differently but then I got used to the sensation and cycled the same way I always do.