evidence: Until the mid-1960s seat belts were not standard equipment in American cars. Owners could purchase aftermarket safety belts like this one and have them installed. Continued education and growing acceptance for car occupants' safety have led most states to adopt seat belt laws. [...] American car manufacturers developed child restraints designed for crash protection in the late 1960s. One of the first was Ford's Tot-Guard, seen in this photograph. The seatbelt secured the padded shield and seat. This early and effective restraint was not widely used, however. Only with more stringent regulations, public education, and mandated use would children safely ride in automobiles.