I think you have an excellent point here. My experience has only been in teaching college students, whom you might think would be mroe motivated since the don't "have" to be there and it costs money. Not so! They are often shocked when they are penalized for turning work in late (even though they were told in advance there would be a penalty). Many of the questions asked on the first day of class can be boiled down to "how much work do I actually have to do to pass this class"? Education is only as good as the mind of the student. It's a two way street. You do the best you can, and they should do the best they can.