Moving Across Classes

Although that I have learned the system of letting students moving across classrooms for class long before, I realized its problem only after attending school as an international student. As I have often heard, there is a prevalent that letting students moving across classrooms for different classes teaches the student to be organized and provides the students more chances to make their own course selections. However, in my opinion, due to its ineffectiveness and risks, the drawback of such system outweigh the possible benefit that may be brought.
The most obvious problem such system brings is the crowded hallway during the break time between classes. After the end of one class, the students would have to pack up the class material, often
First, it is true that there are teaching benefits from letting the students learn how to organize their items, but this is a teaching that costs more that it benefits. If a student does forget to bring his or her textbook to class, he or she is also likely to miss a huge part of the actual class—the information that is actually aimed to be learnt.
Then, despite that students does receive more freedom in choosing their favorite classes that way, firstly, the need of specialized courses does not emerge imminently before college, since the extreme majority of the secondary and pre-secondary classes are yet basic classes such as algebra or English composition, which are required for all students, then, even if there is exceptions, it would be much easier if a student only have to change classroom for that special few classes instead of changing in between classrooms at all time.
Therefore, the solution could be obvious: since most teachers teach specialized one or two courses, it is much easier to let the teachers walk across classrooms for classes; at the same time, the students may simply remain in one seat for most of the classes, and is able to retain their course materials right under their assigned desk at all