YOU don’t have to get used to it. YOU have to say “I am offended by your language as I am sure others are. If you choose to use this language in your home then thats very sad, but please refrain from using such vile language in front of the rest of us.
Even when I worked with at-risk kids, I made it very clear that I don’t accept offensive language around me. If I gave kids rides in my car if I hear curse words especially the “f” word I stopped the car. One kid would tell the other, Mrs….does not allow such language around her.