Are impolite words and cursing others part of every day english in America?

I never visited usa but from the movies and even educational programs like Dr phil or reality tv shows I concluded this. Is it true. and to any extent. I mean can sombody live in Usa without using them or hearing them. i mean words like f.u. son of -----, pasta---, kick my ------, fu--ing mother and more. does these words still have an insulting and impolite nature or they are became somthing else because of widespread usage. I saw also that it is not good to say them in front of women and children. Is there any rejection or refusal to use them in public.