Should pornography be restricted by law?

I would say no, because some people consider it an art and others can use it as education learning experiment for future references. For example, the statue of David made in 1504 by an famous artist, Michelangelo, the statue of David is now one of the most renowned works of the Renaissance. One more example would be health classes in high school. If pornography was restricted by law then, sex ad wouldn't exist and underage teens wouldn't know how to protect themselves from Aid's, HIV, STD and pregnancy.