@417WHB Yep, every school has braggarts. And every school has very solid students who say little when the braggarts move down to lower level classes.
Some schools have more patience with arrogant students. Some communities do not.
All BS have stellar performers in the academic, athletic, artistic and musical space. Some kids have multiple areas in which they excel. These are the kids schools want.
Master of the universe kids often don’t’ reach their high school potential as they “know everything” already so aren’t open to new learning.