As a teacher and a parent I get both sides of the story.
The poster above is correct about parents teaching about respecting authority, without coming across all Cartman! If kids understand from a young age to do as they have been asked by teachers, police, doctors etc it would save a lot of time both at home and in the classroom. I am really trying to instill in my kids the "do what you have to do first to the best of your ability then have fun" idea, it should hold them good through school and work. Or of course it will make them rush their homework..
I think it would also help if people taught their kids that school is there as a resource for you to get what you can out of it to enable you to have the life that you want. If you want a nice car, home, or lots of travel experiences and adventures then get a good education, good job and hopefully cash!! Most secondary school kids seem to think that teachers are there to stop them from having a social life, which of course they can't pay for until they get a job!! Or, they think they will be famous.........