There are so many myths, some of which are pushed here in the CR, about the obligations of chinuch. So many abuse the posuk חושך שבטו שונא בנו, and I am quoting this directly from Rav Wolbe ZT”L. Hitting is not chinuch, and never was. It is untrue to attribute this to שלמה המלך. He never said that.
Chinuch is the raising of child to be a true Oveid Hashem. That has nothing whatsoever to do with discipline. It has to do with teaching. And the greatest amount of true teaching and learning occurs by modeling. We have a fundamental obligation to teach our children to WANT to fulfill mitzvos. Anything that scares them straight is NOT chinuch.
Yelling, spanking, and all other punishing interventions do not produce better Ovdei Hashem. They do promote compliance, and make the lives of the caregivers (parents and mechanchim) easier. But these methods do not teach and do not constitute chinuch.
As usual, i will read followup comments that are vehement and toxic, how dare anyone say this. I will only refer to the many seforim on chinuch from Gedolei Yisroel. After someone has reviewed those, and still wishes to disagree, we might have a debate. Meanwhile, one who wishes to use discipline must be fully aware of the true chiyuv of chinuch, and exactly what is accomplished with the use of these disciplinary tools.