What was the most significant governmental action in the 1960s and 1970s to radically change the EMS situation? The Highway Safety Act of 1966
The EMS Services Development Act of 1973
Candidate Physical Ability Test (CPAT)
President Johnson’s 1965 President Commission on Highway Safety

Several Medical and Law experts gathered together and debated the formation of a new half government half privatized department to assist the Fire Department and Police in the field faster than the hospital could. In fact back then even experts debated to make a law that drivers must yield to emergency vehicles. However that law didn't become official until 1996 when a Paramedic was struck and killed by another vehicle.

answer:

i think that is because of today's society mainly the gangbanging and ect.