Why?

If you haven’t been raised with domestic abuse… a father berating your mom and cursing at her and calling her a “dumb, stupid bitch” tens of thousands of times as a child, in both English and foreign languages… for people to throw the word around is improper.

Also, if you have never witnessed your dad grabbing your mom’s hair and head, thrashing her around the kitchen and demanding the rent money (so he can go gamble)— … perhaps one hasn’t a good sense of things.