If a school employee ever comes to me and says my kid has ADHD and needs Ritalin, I’m going straight to the local prosecutor to demand prosecution for the Class 1 misdemeanor. If he isn’t willing, I’m going straight to the press about school officials practicing medicine without a license (Law: “Any person shall be regarded as practicing medicine ... who shall diagnose or attempt to diagnose ... any human ailment, physical or mental...”) on my kid and the prosecutor’s unwillingness to stop it.
Teachers don’t have to pressure parents in such overt ways; oftentimes they are a bit more roundabout than that. They can (and often do) just cause so much trouble for your kid that it makes you want to do “something” just to get the negative and destructive teacher attention off your kid.
I succumbed - I homeschooled mine. I don’t know who was more relieved - me for not having to put up with the teacher BS or the kid for not having to deal with the problem teachers.