They definitely do. When's the last time a teacher angrily shouted at a 5 year old, yanked a toy away from them, told them to shut up, smacked them round the head....?
They get the child to comply with out the fear of pain, it anger etc.
They "gentle parent" these kids, by talking to them, setting clear and firm boundaries, building a relationship of respect and trust, acknowledging they have feelings etc.
What the fuck school have you experienced that has time for this? Schools with effective discipline policies will have a host of consequences.
They will not expend time or energy acknowledging the feelings of the selfish kid who ripped up another childs work, or the bully who injured another child, or the child whos disrupted a lesson repeatedly.
They will threaten contacting parents, dish out detentions, take phones away, set extra work/lines, remove privileges like attending year end proms etc
Teachers will speak firmly to older children or even raise their voice etc.