Coaching classes for engineers

I want to start a new discussion about coaching classes for engineering students. I dont know if this topic is/was discussed earlier. (I am too lazy to go thru old posts).
What do you think about coaching classes for engineering students.
Is it OK to spoon feed a student till his graduation studies?
What kind of an engineer this student will be if we have to spoon feed him till his last exams?
When will he learn to solve problems on his own?
Will he ever be able to think about any new ideas?
I had some trainee engineers working for me last couple of years. All of them went to some or other coaching classes.
It will be a understatement of the year if I say I was disappointed with them.
As a graduate Mech Engineer you should atleast be able to tell difference between 2 stroke and 4 stroke engines or centrifugal and reciprocating pumps. Most of them could not.
I never had to go to coaching classes for my engineering studies.
I would like to say that I am not the best engineer around but I am better than an average guy.
But I cant say this about my trainees.
So what do you think. Are coaching classes relevant in today's world. Or old fashioned self study makes better engineers.