why is 18 most commonly seen as when you become an “adult”?

Question

Is it just because that’s when you’re done with high school? College is still fairly “expected”, so why isn’t that counted?
I don’t understand why most/a lot of cultures view 18 as that turning point, even though we know the brain isn’t even fully developed until 25.

In: 0

Answer 1

That’s the age you legally turn adult in Germany. You have to set any number, don’t you?