Neither is being a child or an adult a binary. Yes, the law generally makes a sharpe distinction based on age, but it does sometime recognize that someone who is close to the age of adulthood and who has been charged with particularly high impact and violent crime can be treated as an adult.

Whether an adult should or should not be imprisoned for life is a different question, but I cannot see treating this person a “child” appropriate.

What an absurd position. Comparing things helps calibrate the response. You compare situations to others you've experienced in the past to come up with an appropriate reaction.

What's the intent of SWATing? It is attempted murder.

And no, half the teenagers are not sociopaths. Sociopathy is a well defined condition that cannot be cured.

You're clearly neither a doctor nor a lawyer and have chosen a weird hill to die on, but carry on.