This isn't a topic that's easy to discuss irl from the stigma around mental disorders and psych medication. I think these medications are over prescribed in an effort to medicate away undesirable behavior. These medications only treat symptoms and do nothing to treat the root causes of the mental states they treat.
Attention, aggression, anxiety, depression, there's a whole menu of pills to treat each one. The drugs range from MAOIs, SSRIs, and stimulants. Your brain works through a series of chemical reactions to produce electrical signals which in turn produce more chemical reactions. Changing the chemistry changes your thinking. You wouldn't give alcohol or weed to a child because they're suffering from anxiety or depression, so why is drugging children the primary solution?
One of my friends was on SSRI's for half his childhood. I feel kinda sorry for him because his adolescence and teenage years were spent medicated and isolated. I only met him after he got his brain back to normal but the stories he's shared from his childhood make me think some of his issues were caused by the drugs messing with his brain rather than any diagnosed disorder the drugs were for.
As an aside, most school shootings were done by someone with a history SSRI use. Do you think there's any link between the two?