Sorry, missed a contraction there. But yeah, I'm all for punishing them. They're definitely stupid. On the other hand, the prefrontal cortex (basically the impulse control part of the brain) isn't fully formed in teenagers. I just don't think it is logical to say "Oh, we'll accept that a kid isn't an advlt unless they really screw up, in which case we'll treat them like the advlt that the screw up proved they aren't." Punish them yes, that's fine, but don't pretend that they're advlts and prosecute them as such. They aren't.
And by ruining their lives, the victim will pop out of the ground all better? A whole different universe, yes, punish them as such, but they're not advlts, and they didn't think about this crime like an advlt would have.