Is the phenomenon in which people cling to their initial beliefs and the reasons why a belief might be true, even when the basis for the belief is discredited.

answer; belief perseverance;

this is a pretty broad question and can be a pretty lengthy answer. since 1900, women have gained a lot more rights and have become active in the workforce. with women being in the workforce, men play a larger role in family life. many family tasks are shared between men and women, whereas, women used to be the sole family caretakers.

that should get you started at least.