In Japan, they take school very seriously. Students aren't normally allowed to have jobs; they are full-time students. With the money issue though, they still get an allowance for the week/month. Sometimes HUGE amounts ;D
But yeah, in the Kozuki's case they should absolutely be able to get jobs.
That's why I don't get schools. Expelling someone just because they have a parttime job or was somehow involved in an incident, where they were only helping out.
