Ex-etiquette: E-biking son needs to wear his helmet

Ex-etiquette: E-biking son needs to wear his helmet Q. My 14-year-old son saved his money and bought an e-bike at his mother’s home. The stipulation was that he always wears a helmet when riding it. Two of my friends called me recently and told me that my son has been spotted riding around the neighborhood without a helmet. They sent me pictures. His mother isn’t doing anything about it. What’s good ex-etiquette? A. My first question would be ...