Are parents responsible

In the education field, I and many I have heard have often blamed parents for not training and instilling the proper values in our children so that they will be good students and good citizens. I have come to realize that many parents do not have that training or the values to teach their children. Because of this, the cannot be expected to know what they are not training their children. Parents need to be educated. Since we need to teach their children, then perhaps we need to teach parents what students need when they come to school and what they need for support when they are at home. But my question is, how do you do that?