It's only age and the default of growing wisdom which has made me begin to see certain norms in life actually do have grounding. One of these is cursing. I dunno about you, but I really detest casual cursing, despite my love of both free speech and the art of language. I think it cheapens language generally. Curses should be reserved for when they serve to highlight intense emotions, in my opinion at least.
Your AoA is 3 to 6. Mine is roundabout 8 to 12, though not strict. When I hear slightly older girls casually using curse words, it is a HUGE turnoff for me. It just sort of screams "I am trash" and I can'r seem to get past it, nor do I feel I should try to.