Kids and teens will only take care of the dishes and collect trash autonomously if they have the neat trait or very high responsiblity or good manners (for dishes only).
The mod does not affect cleaning dishes after eating, as this behaviour is dealt with by my <strong>noautonomouswashdishaftereating</strong> mod.
Sims will be more likely to not put their books down on the dining table. They also will be less likely to do their homework on top of their computer's keypad.
The dishes-Module stops Sims from putting down their dishes in places where they cannot reach them when trying to clean them up.