Review: The Catcher in the Rye by J.D. Salinger

Goodreads summary:
"The Catcher in the Rye" is J . D. Salinger's world-famous novel of disaffected youth. Holden Caulfield is a seventeen- year-old dropout who has just been kicked out of his fourth school. Navigating his way through the challenges of growing up, Holden dissects the 'phony' aspects of society, and the 'phonies' themselves: the headmaster whose affability depends on the wealth of the parents, his roommate who scores with girls using sickly-sweet affection. Written with the clarity of a boy leaving childhood behind, "The Catcher in the Rye" explores the world with disarming frankness and a warm, affecting charisma which has made this novel a universally loved classic of twentieth-century literature.
My opinion:
I surprisingly really liked this novel. It was a bit slow at the beginning, because Holden is very moody etc., but the writing style kept me going and I ended up really liking this novel. I do understand why this is a classic that most people in USA are required to read in school (I didn't read in school, so I picked it up because I wanted to), because you can learn something from it (or even realize something about life and/or society) and it's (I think) relatable to most teenagers as well. Everybody feels kinda depressed one in a while and thinks about dropping school. This is also a very accessible classic, because it's very easy and quick to read and feels like you're reading just a YA novel. And another reason why I think it's so relatable is because Salinger made the characters so very realistic (which I really loved). Oh and I personally also really liked Holden as a character (which is a very unpopular opinion I think?), even though he could be sometimes annoying to other characters. Those part where even funny to me. So if you like to read YA novels and want to try a classic: read this one! You can also read it if you usually don't read YA; this book is just for everybody. I personally really, really liked it and I'm glad I gave it a shot.
What is your opinion about this novel? Did you have to read this one for school or not?