Requiring homework on a consistent basis is not an evidence-based practice and actually introduces worse outcomes for kids whose parents/guardians are less present, which disproportionately affects poor kids and kids of color.
Why do we do it? Because there are some parents (you know the ones) who will pester the school and lobby for dropping their funding if they don’t see consistent tangible output from their students. If the kids aren’t coming home with half a dozen papers each day and a bag of books, how can we verify that the teachers aren’t just sitting around on their phones all day not doing shit and collecting a paycheck WITH OUR TAX DOLLARSSSSS?!!!?!?!
So, homework largely serves as busy work to signal to parents that teachers are doing things. And the system is designed for parents to actively encourage and participate in the development of the skills required to regularly complete homework independently by high school. Kids whose parents have less free time are inherently disadvantaged, often labeled as bad kids or lazy early on, and can have a seat on the prison train before they’ve entered middle school. It also harms kids’ self esteem and sets an unhealthy precedent for expectations around work-life balance.
There isn’t a single thing that homework accomplishes by accident which couldn’t be accomplished better on purpose via other methods. Fuck homework.
I think this is something that isn't an on/off issue. Homework is important. There simply isn't enough time in class (at least in US public schooingl) to do retention work and give a lecture. Reading assignments all but have to be given in order to efficiently give instruction and for things like maths, repetition of problem solving is super valuable. Even the practice of working through material on their own is in itself important for people learning.
At the same time, I've definitely had to do bullshit busywork worksheets or had classes that assigned too much homework to comfortably finish in combination with other courses.