The more interesting take for me is that these meds work roughly the same way and almost as well in people without ADHD (a symptom cluster, not a single disease per se, like everything else in the DSM). As we give them to people with ADHD why not let anyone get a scrip?

People without ADHD already get more than enough benefit from just coffee. Stimulants might be able to benefit them further, but if you let anyone take them, eventually it'd become expected of everyone due to their increased productivity, and the potential consequences of abuse are much higher than coffee.

Chronic use of caffeine blunts the effects, it doesn't do much to regular drinkers. You develop tolerance very quickly. I can drink several cups and get basically no effect. Apparently your body just increases the quantity of adenosine receptors in the brain to offset the caffeine.

Well, I yet to see someone without ADHD who becomes calmer and slows down after taking stimulants.

I didn't say it's not real. A doctor prescribed me Adderall at 18 after talking to me for 5 minutes because I was having trouble sleeping. It did more harm than good.

Something can have therapeutic uses and still be over-prescribed.