I hear you, and acknowledge the strong opinions around Helen’ helmets while bicycling. I usually wear a helmet (I’m in the USA), and for slow trips on known routes sometimes I skip it. If I lived in the Netherlands (or anywhere with a robust bike-commute culture) I might never wear a helmet, because I’m not so fast anymore and I’d be doing known routes at moderate speed.

I lean towards wearing helmets, and support wearing them in cars (I don’t do that yet because of social stigma, though maybe I’ll work up the gumption now that I think about it).