I'm sorry you are incorrect, but ritalin is effective in real cases of ADD where " some good old fashion discipline" has nothing to do with the disease. You solution is similar to beating the snot out of a baby because they have a cold.
Had my kid not had ritalin, later followed by different meds, I doubt she would have made it to high school. She has real ADHD, whereas I doub yours had it, or had as severe a case as my kid.
Talked with a grade school teacher a few years ago and she said that about 1/3 (yes, ONE THIRD) of the kids in her school were diagnosed ADD or ADHD and were on Ritalin. And the schools get extra money for each and every one of them. They wanted her to put her kid on it and she pulled him out and sent him to private school.
She didn't like the situation but didn't want to rock the boat and lose her job. Spineless cowards enable evildoers.