Adults with ADHD live shorter lives than those without a diagnosis
npr.org
npr.org
(2) I don't think ADHD meds are good for you, for instance they raise your blood pressure
https://pmc.ncbi.nlm.nih.gov/articles/PMC8188377/
rot out your teeth
https://www.stlawrencedentistry.com/blog/oral-health/oral-ef...
(a friend of mine was an early adopter of ADHD meds, in his mid 40's he had his last teeth pulled)
and cause osteoporosis
https://www.nature.com/articles/s41598-018-19894-x
not to mention these drugs are addictive
https://www.hanleycenter.org/is-ritalin-addictive/
And no, a doctor writing a script for these doesn't transform a dangerous medicine into something safe the way a priest transforms bread and wine into the body and blood of Christ.
My guess is that they get you coming or going; medication may help with the behavioral toxicity, but has negative side effects. That "early adopter" I mention says that he needs his Dexedrine (his monthly dose comes in a pill bottle which is approaching the size of a small trash can) to do anything, but he doesn't do very much and has a serious hoarding problem.
My take is that for kids it is not a matter of what is good for the kid but what is good for the school. Much of "neurodivergence awareness" is not an increased acceptance of people's diversity but a reduced tolerance where a kid can't just be "weird" or "out of sync" but has to have a diagnosis.