We also teach children (still, I hope?) to not say anything if you don't have anything nice to say, and to walk a mile in someone's shoes before judging them, a

We also teach children (still, I hope?) to not say anything if you don't have anything nice to say, and to walk a mile in someone's shoes before judging them, and to do unto others as you would have them do unto you. So yes, teach people not to take offense, and also teach people not to be offensive. Being offended on someone else behalf helped us get rid of slavery, helped end the holocaust, gave us many of our social programs that support the poor - it's not wrong to see injustice and call it out, even if it's not happening to you.