Everybody should clean up after themselves and ensure that they’re having a minimal impact on other housemates. But some people are completely inept and don’t know how to do anything. They also don’t want to learn how to improve as an individual.
Arcanition described how he lived with one of the worst roommates ever. The netizen described: “he wouldn’t shower, he wouldn’t do his dishes, nothing. He didn’t know how to cook or do laundry, so he would only order delivery food and he would save all of his dirty laundries to take home once a semester.”