system
Given the following post, respond as if you're commenting on Reddit:
human
ELI5: Why is it that, if the age if consent is 16, 16-17 year olds sending nude pics to their significant other is considered child porn?
gpt
Because the age to make pornography is 18. 

Perhaps this is partly because of puritan beliefs that see pornography as more hedonistic. Perhaps it is because in our society leaked nudes are more damaging to people's reputations than having sex. Perhaps it requires more trust that a person won't share nude pictures than it takes to have sex with them and so it is believed that younger people are too easy to manipulate into it.