What do you think she does when Ass is on his adventures? She doesn't have a job, she doesn't have other kids to take care of, and there's only so much cleaning to do at home.
>>57966856 (OP) She is irrelevant and just there so Ass ketchup is not a fucking orphan. Thart's also the same reason as why they will never show his father, since they are irrelevant to the plot. Kids dream of being free from their parents, and pokemon is that dream coming true.