Our textbook that we have are extremely heavy! If we have homework and we can't finish it in school, then we will have to carry that textbook. With all that weight on your back, it could create some long-term effect on your body. Like you start to walk like an old man when you aren't even 20 years old. That could affect later on when you grew up.
I would never have made it without a book. And your not carrying THAT many textbooks everyday, sheesh. I look at the examples in the text book to figure things out. Electronics just don't work for me. You can't always trust that they will work. In my school, they use a website called Canvas. My account is always failing and my assignments NEVER load.