评论区很有爱, 家长不从小教娃守纪律讲卫生，长大后成了家就会为此吵架，走到社会上处处为此付出代价

Need a drill instructor in every classroom with a speech like this prior to beginning of school year. Kids these days need discipline, but the parents are not damn giving it to them.

We need these guys in our schools starting from the first grade on.

It only took 3 minutes, for that man to do, what the school system failed to do, in 13 years.