This is somewhat true. I'm fairly knowledgeable about this topic (US) im pretty sure Children still cannot be officially diagnosed with a severe personality disorder until usually 14-18 depending on the state and the personality disorder. Usually it's higher age brackets for more "severe" disorders like aspd. Yet weirdly low for add, adhd and odd. Depends mainly on state.

Many problematic children will be diagnosed with both odd and adhd /add at a young age and the moment they "age out" of youth services they'll be immediately diagnosed with aspd or a whole bouquet of other DSM's. This is one of my bigger pet peeves as parents are often left out of the loop pourpousefully simply as there is no "solution" to a child with such issues other than buttloads of money and time.

To add, as someone who has worked with children and children with behavioral issues. In multiple countries and cultures:

We usually know with like 80% certainty by the time the child is I'd say six or seven, roughly what is wrong with any given child, and can give pretty spot on diagnosis between ourselves. We are ofc not allowed to speak with parents regarding most of these issues, that's a 5 minute talk between a child's psychologist and its parents every six months. And Timmy just can't sitt still for more than 20 minutes! It's a disaster! But other than thst he's a little angel!

Also, imagine telling a Karen her precious angel tried stabbed another kid with scissors?

Yeah I fucking stabbed her, I fucking stabbed the lil bitch in the face cause I fucking hate her fucking bitch"

And then two weeks later you almost loose your job, cause surprise. Timmy just stabbed the lil bitch in the FACE with Scissors. I know from the grapevine Timmy is now in a locked mental health juvie. Like. How do I explain. We all knew? All of us who ever worked with him told each other he was going to spend the rest of his life getting bailed out of jail by mommy and daddy, or dead, or 15-life. We knew he was dangerous. Deranged even. Why dosent anyone listen? Parents didn't care, administration didn't care. Hell the only people who seemed to actually care were us and the girls parents. (big and biggest Bitch)

It's this shit + the metal detectors (+admin) that makes people like me charge 100$/h tutoring autistic kids now instead of working 50% and volunteering 50% at local school districts.

I am not a teacher. Just a giant guy who has always been good with kids. (I never stopped being one)

I dont think im intelligent enough to get into the nature vs nurture argument. It's a doozy. My opinion is "why not both" I've seen both sides proven imo, a good nurture just gives you alot more tools to use.