Sare v. Stetz
In Sare v. Stetz, 67 Wyo. 55, 214 P.2d 486 (1950), the Court rejected the family purpose doctrine, under which a parent, as owner of a car, may be held liable for the negligence of a child who drives the car.
In doing so, the Court held that "'a parent is not liable for the tort of his minor child merely from the relationship.'" Id. at 488.