Front seat passengers, who are older than what age, are themselves responsible for wearing a seatbelt?

14 and older

Explanation:

the law requires that drivers and passengers age 14 and over in cars Vans and other commercial vehicles must wear seat belts if available as a driver you are responsible for ensuring that anyone under the age of fourteen wears a seatbelt or an appropriate child restraint as required by the law

gynecologist i believe