How do you know the parents have not already spoken to them? Kids usually don't listen any ways. Kids say the most filthiest of words, no one outside the parents want to discipline kids any more. Schools don't do it, activities don't do it, any close adult who would used to correct a child's bad behavior don't do it.

So what this really comes downs to, is that kids now roam free from consequences, free from being corrected when needed. This includes not just racial slurs, but any words that they once were not allowed to say.

Society is crumbling