There are many people who want to look at kiddie porn, most of whom are inspired by sexual feelings toward children. They are considered normal in many western cultures.
Pedophiles often accumulate significant quantities of child pornography.
A sexual opportunist will expoit sexual opportunity when it presents itself, often against the will of the subject of his intentions. Many are pathetic individuals who, for one reason or another, act in a regressive manner by acting in a sexual manner toward children. Usually, their targets are their stepchildren, their own children, or the children of friends and relatives. They are typically heterosexual men, who thus have no interest in child pornography.