回复9楼:
教你个乖，California Seatbelt law 里规定，车里有人不系安全带，不管是成年或者未成年，司机都要负责。你要是以后开车带人，最好记住这个

https://www.dmv.ca.gov/portal/handbook/california-driver-handbook/occupant-protection/
"You and all passengers must wear a seat belt or you and/or your passenger(s) may be cited. If the passenger is under 16 years old, you may be cited if they are not wearing their seat belt."