You are assuming the accepted, but unproven wisdom that helmets will prevent more injuries than they cause. Did you read the meta study cited in the article th

You are assuming the accepted, but unproven wisdom that helmets will prevent more injuries than they cause. Did you read the meta study cited in the article that shows a lack of evidence for such an assumption? Have you read about the standards used to "certify" bike helmets, which don't simulate bike crashes very well?