Why people watch softcore porn?

So they prefer something fake because they still wanted to imagine things? Why don't they just read a book like 50 shades if they wanted to imagine. I still don't understand why some people are more turned on by this censored fake stuff.

You know people are least interested in watching porn where it is legally allowed but the people in countries watch porn sites where it is officially banned. Although, no government in the world can possibly impose ban on porn but the fact is people love to leave something on their imagination too.