First of all: middle school students are mostly in adolescence, and people in this period have a rebellious mentality, long for individuality, always like to seek excitement, and love unique things. But they are easily influenced by the outside world and like those characters with a shining halo.
Why is pop music so popular among middle school students now? Because of its shocking power, music that expresses individuality and advocates self-esteem is naturally in line with their psychology. Classical music is highly praised by parents and teachers (students generally don't like things that parents and teachers like), and its music form is too rigid and not as free and lively as pop music, so /// I don't like it. . .
Of course, the middle school students here only refer to some students. There are also many students who also like classical music.