You cannot educate pork. U-turns add many kilometres of wasted fuel & time to even a short journey; it's far easier to drive the wrong way & risk disfigurement.
They have thousands of checkpoints which serve only to rack up the overtime payments whilst the cops pay no attention to the roads just like every other day of the year.
Come to Thailand to inhale the world's most carcinogenic air; experience the risk of trying to use a pedestrian crossing; get treated by doctors who view a sick person as a blank cheque.
I only did it once; enough to convince me it was more hazardous than 50 years of cigarette smoking.
I drove the 7 over weekend- nearly 300 kms round trip. Did not see ONE cop but plenty of dickhead speedsters.