Most of ADHD's clinical symptoms are hilariously identical to having bad habits. Of course a dopaminergic pill is going to alter reward mechanisms in the brain and help a shitty snotnosed kid do things they would normally not do. But discipline and wisdom can also impart behavioral changes, and is much more lasting and real.

Amphetamines are performance enhancing drugs for air force pilots to do 16 hour sorties.

They are too hard a drug to give to a kid to bandaid over his impulsivity.