Yes, this is the real problem. It ain't the crappy teachers. It's the family.
When I was at school, the teachers were crap, "Open your book, read the text, answer the questions, and I'll be here sitting at my desk if you need any help" lol. I don't think they ever had a lesson plan.
Thai families are shocking for not encouraging children to ask questions, read books, be creative etc etc.
They barely spend time together, except eating or walking around a mall. Parents here don't take an interest in their children's passions or try to stimulate them at all.
So long as their child is: fed, watered, washed, and wearing decent clothes - that's it! Job done!
There are exceptions, of course, and their kids shine in the classroom and do well - crappy teacher or not!
Others don't want to learn. It's fascinating how so many people are incredibly resistant to learning anything at all.