Thy lecturer shalt always be, aye? Nay!

Just last week, a classmate of mine, X, did not bring his textbook to a certain tutorial. He was then asked to write his name and leave the classroom. I feel that what the lecturer has done is wrong. She said that the textbook was essential in this tutorial (but we barely looked at it), and it was her ground rule that if you do not bring the textbook, you cannot attend the class. This is very unfair in my opinion. It has not only hurt X’s self-esteem to be shamed like that in front of the whole class, but it is a very childish punishment that should be bestowed upon a primary school child, not a polytechnic student.
We pay a great deal amount of school fees to be schooled here and I feel that missing a class is wasting our parents’ money. X did not bring his book but had a valid excuse. His excuse, however, was not taken into consideration. It was also only the second tutorial, so a warning should suffice, and action should only be taken the second time round.
In fact, I believe polytechnic students should not even be punished for mistakes such as this one. We should be treated like grown ups that are responsible for our own action. If a student should choose not to pay attention in class, a lecturer should not reprimand him/her because as a young adult, the student is responsible of his/her own action. The student can choose to waste his/her parents money by paying fees but not bothering to learn and that is entirely his/her own business. I may be contradicting what I said in the paragraph above about wasting our parents money but the student can choose to waste his/her parents money. A lecturer should never be responsible for wasting parent's money, because parents pay fees to pay the school to pay lecturers! At the end of the day, you can fail the student for poor results but the student should never be sent away and marked absent for something as minor as forgetting a textbook. The lecturer should only take action if the student who is not paying attention is disrupting the class causing commotions. If the student is just seated alone not affecting the class, he should be left alone as it is the student’s choice not to learn. In the end of the day, s/he will suffer the consequences.
So after babbling on so much, what am I getting on to?
I only want to know, what exactly are lecturers thinking?
Some go as far as asking us to call them by their given names, instead of Mr.T or Mrs.P , chatting with us as if they are our peers, making friends with us. Others are so strict, showing us they are seemingly a class higher than us student. I find that for today’s society, the I-Lecturer You-Student mentality is all wrong and not working anymore. Students do not necessarily, respect lecturers who have this kind of mentality. Students learn better and respect lecturers much more when lecturers put themselves at our level to understand us.
Lecturers should threat students in tertiary education like young adults instead of primary school children.
Lecturers should show respect to their students first if they expect the student to respect them.
Students are much more willing to respect and learn from a lecturer who approaches them as a lecturer-friend rather than a lecturer-superior.
These are possible thesis statements, right?
Or am I going to be expelled for writing this?