The secret diary of Adrian Mole

Actually, when my teacher told me to read this book, I thought that it's going to be a piece of cake(and it was). This book was about a 13 year old boy's life. The main character Adrian wrote a diary of his everyday life and most of it was about his family and school life of course. Also, as he is a boy, he was into girls and his little thingy. As i went on reading the book, just like other students have told me, it was a little unapporporiate for us.
Altough it was talking about what our age students like to talk about, it's our men secret kind of thing. It was a little shame on the teachers that they've chosen this book for our education. Now back to the stories. Well he always talks about his mom and dad in an 13year old boy's view. He thinks that his mom cheating on another man isn't real problem. He just thinks that the man is pretty kind to his family and nothing more. He measures his dick often and marks his size on a piece of paper. I saw the drama "the secret diary of adrian mole" and this part was actually really awful to see. I thought if the girls saw this movie to get a better understnading of the story, They would be really shamed of themselves for even thinking about watching the drama.
I don't really have much to talk about this book but just one thing. It was embarrising for me and i believe it was same for other student becaus there were too many indecent subjects that Adrian talked about. My point is that i don't know why our selected, gifted and talented teachers have decided to assign us this kind of book. Sorry for our teachers but this was the first time that i was disappointed at any of our teachers.