homework is fine if it's beneficial, at school level its often not particularly useful since teachers just set it just because they're supposed to. i never did ANY homework when i was in school but when you get to college you begin to realize that because the learning format is so different, you NEED to finish your work at home or else you get bad grades, usually any homework at college is all going towards your coursework. and at uni it's not compulsory but you do get WAY left behind if you miss a few weeks reading, deadlines are strict and you have to pay if you want to resit an exam etc, so you realize that it's more a case of "well i don't have to but it will help me understand a lot better"