13 year olds are also different from 19 year olds
and 13 year olds are different from 7 year olds
I have seen people literally argue that a romantic relationship MUST be abusive because one of the lovers is only 19 and therefore "still a teen" ... the dogma that says teens are children is absolutely false and it is damaging the hell out of young people.
This 4 minute vid explains it pretty well. https://youtu.be/12J1f0Zqaqw