We deem it inappropriate for children to consume porn because they must be protected from potentially harmful influences. The viewing of nudity can do a child's mind and character no good, and we care to censor the trash, including offensive language, violence and blatant sexual material. Adults can make their own choices, so we must take personal responsibility for the material we feed our minds every day. For example, porn is associated with heightened tension between the sexes - ask a friend if he or she has a bit of trouble comfortably approaching the opposite sex after viewing pornographic material. At worst, porn encourages crime because it portrays people as objects or as animals - do some research on the correlations between mens' consumption of porn and their likeliness to commit rape, molest children or harass women.
Much pornography includes graphic images of sexual violence.
Sixty percent of women do the same. The appalling public acceptance of filth is an open door to lax character standards and the degeneration of our communities' moral fabric. In our empirical society, we manage to ignore the ample evidence that links pornography to social ills ranging from the depiction of people as sides of beef, to the glorification of casual sex, to condoning sex crimes. Pornography is approached not as a social disease, but as a privacy consideration. Now, ask yourself if we should stop making excuses, start cultivating some civic virtue and start taking some pride in what we choose to see and hear.