[eloisant]

If homework is not used to check progress, then cheating on it is not a problem.

Don't grade homework. Only grade work done in school. Students who cheat on their homework are just deterring themselves and won't do as good at the in-class, graded exams.

[HDThoreaun]

Well it comes down to what the point of school is. If the goal is just to figure out how competent a student is, sure, but if the goal is to educate students then reducing the amount of time they spend on school work will lead to worse outcomes.