Shakespeare is inappropriate?

I always thought Shakespeare would be one of the few literary works I felt would be safe from the hands of angry parents and offended Christians. I thought wrong. In 1996, a high school in Merrimack New Hampshire banned Twelfth Night because......it encourages alternative lifestyles. What? Apparently a woman disguising herself as a man is just this and is therefore worthy of cencorship. In 1999 Winndsor Forest High School required student to obtain signed permission slips to read Hamlet, MacBeth, and King Lear. This was because the laugnage was too "adult." There was also sex and violence. I find it ironic that some of the most beautiful works in the english language are too "mature" to be taught to high school age students.
Marilyn