Earlier quoted context omitted.
> then why are helmets not recommended for car passengers, people showering, changing a lightbulb etc Strawman much? car passengers: airbags and seatbelts are in direct conflict with and superior to helmets. people showering and changing lightbulbs are not traveling at speeds exceeding a walking pace in an orientation predisposing them for a head/facial impact for hours at a time. The full-face helmet I wear is heavi…
People do still receive head injuries from car collisions even with airbags and seatbelts, so it's reasonable to think that wearing a car helmet would provide additional head protection - it's certainly common in motorsport. I'm trying to compare activities that have a significant risk of head injuries (and deaths) with cycling and yet PPE is very rarely mentioned for them.
Can I ask, is it only safety equipment for cycling you're against?
It looks like you're trying to argue that people shouldn't wear helmets when cycling because people in cars; that have protection from a steel cage with crumple zones, and airbags, and seatbelts, and cushioned seats; don't wear helmets.
Like, sit in your car and get someone to launch a paving slab towards you; then sit on your push bike and do the same thing ... I'd do the first without a helmet, I definitely wouldn't do the second without a helmet (or at all). I can't see how you can find these situations comparable wrt indication of benefit from a protective helmet.