[krastanov]

Why would you ever assume that!? I also wear a mask when riding near traffic. Masks on bikers without helmets were a common sight in Paris in 2009 when I lived there. The mask has a measureable increase in immediate comfort, while the helmet is something that requires thinking ahead. Of course more people will remember a mask before they remember a helmet.

[seanmcdirmid]

Is helmet wearing on bikes common in Europe anywhere outside of the UK?

[detaro]

German stats are afaik something like 20% (heavily skewed towards kids)

[isbvhodnvemrwvn]

Not for casual riding.