I don’t say it is wrong to be arrogant. You can be arrogant. Arrogance is just a human flaw, among others such as immaturity, narcissism, patriotism, tooth decay et al.
I see a lot of people being offended on their encounters with such brats. Don’t!
In fact, feel sorry for them. They nurse insecurities and fears far deep rooted than any of your shallow counterparts.
Well, take it from me..