I honestly think at that young an age, having family time and building up that familial relationship is highly important. Kids SHOULD be going outside to play, that's the best way to learn, it's a hands on approach to the world around them and a starting point for rules. Parents can do a lot to make play time entertaining and educating.

The problem with homework is that it adds a lot of stress to a child during their formative years, which can be not only detrimental, but can have real health implications. Furthermore, compulsory homework can strain relations between teachers and students, harming any kind of possible mentorship that children may have with their teachers. This can leave to disenfranchisement and when kids get behind, they are far more likely to be afraid of approaching their teachers. Furthermore, increasing teacher's workloads can reduce their available time to consult the children about ensuring they understand the coursework.

As an example, Finland has no homework. It has a 93% graduation rate for high school student, compared to Canada's 78% and America's 75%. Finland also has the highest college attendance rates in Europe, with two thirds of students attending college. Finland also dominates in test scores, being first in the world.

It would be unfair, however, to not mention that Finland also has various other policies in place, such as keeping test amounts to a minimum, lower density classrooms, and also the requirement for teachers to have a master's degree. However, it should be reminded that some of these things are more affordable due to the fact that teachers are not spending two or three extra hours a day marking homework.

In conclusion, homework can negatively affect not only students, but teachers, reducing education rates and making school time less efficient.