<p>I read the blogs of the students who attend my daughters high school and I am generally impressed by the caring that they show to each other, the humor they express and the passion they have for their various interests.
Some are occasionally crude, but those are the less frequent posters and the crudeness is usually expressed in the icon they select, not in language.
Vulgarity in language can sometimes be explained by a limited vocabulary, I hope that as they increase their vocabulary they will learn the joys of subtlety ;)</p>