Why is it that the role of the police encompasses much more than dealing with crime? What influences the societal expectation that police are the to respond to social service duties?​

It's because police were trained to bring peace in society, they deal with crime because it's a violence. Actually, people's can trust polices, so they'll expect the best from them.

that's what I can say

on june 23, 1972, the president signed title ix of the education amendments of 1972, 20 u.s.c. into law. title ix is a comprehensive federal law that prohibits discrimination on the basis of sex in any federally funded education program or activity.