Because its exaggerated and slangy language isn’t thought to be suitable for college kids learning to speak realistic Japanese. And because reading in Japanese is automatically labeled as hard. Though these categorisations are based on the age and gender on the readers, it doesn't imply that an Grownup female, for https://colab.research.google.com/drive/1Ufv3iodBkxK6b4KUhTXvoQq_HteM7D8o?hl=ar