If they don't have lockers and have to carry everything in a backpack all day, what do they do with the books at the end of the day? If they don't have lockers and have to take them home, why a set of books for at home? This isn't making sense to me.
One set of textbooks stays in the classrooms and all students share them. There are enough for each student to have one during the period. Each student only carries a large 3 ring binder with dividers per subject, along with a chromebook or laptop (every student gets one free to use for the school year or they can bring their own), lunch and a bottle of water or whatever. The only students with lockers are the athletes that have after school practices, and those lockers are only allowed to be used to hold uniforms or equipment. The lockers are located in a locker room attached to the gym. They are not anywhere near the classrooms, but the gym is attached to the parking lot/drop off zone, so kids drop off their stuff when they get to school.
To be really honest, though, most classes don't even use textbooks much anymore. I think my son has cracked open his math book twice this year. Most teachers put assignments online, and they print out relevant homework sheets as needed. Since all students have a computer for personal use, they mostly do stuff via Google classroom or Canvas.