Why do social costums different from one community or region to another?

social customs differ from one community or region to another because it is q method of discrimination against girls as well as people of different colours and religious

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.

i truly dont know the answer wait i do its 1,3,4