Which acts do you think a 15 year old can’t commit that an adult can? Does he have the mentality of an adult? Depends on the adult, if age is the only contributing factor in determining adulthood.
It was a rhetorical question. I think teenagers are completely capable of committing adult crimes and acting like an adult, although they clearly lack experience.
For example why is it that a teenager can be tried as an adult for murder but is "just a child" if they spread their legs and have sex outside of marriage?
Both are natural sins. And I see an inconsistency with what man's law says is right and wrong vs. God's view.
Either a teenage is an adult (A young one I will admit if that is the standard) or they are a child. If a child then they are not responsible for what they do. If an adult then they can make decisions like an adult at any level.
I am only pointing out an inconsistency in the logic here.