It's called consent. For a minor, their parent or guardian must consent to show them adult or other traumatizing content. Despite your personal experience, parents and guardians ultimately have the right,authority and responsibility to do their best to ensure the well being of a minor under their care which could mean no porn or even no meat in their diet. You don't have to agree.

> Much worse than adult content is addictive content that forms obsessive behaviors...

There is literally nothing more addicting than porn. Not only that but the long term social and behavioral issues that result from porm addiction are far more harmful than for example cocaine or lsd (which isn't addictive).

But let's say porn is not harmful or addictive, showing porn to people against their consent is a form of sexual abuse much like exposing yourself in public is (despite nudity laws). It boils down to the fact that biologically speaking naked people arouse a sexual reaction and sexual interactions of any kind must be between consenting parties. Period.

This isn't about policing morality but consent and it is a shame that it is neccesary to begin with.