Charlie
If kids stay up late they lose sleep and then that means they’ll be tired and cranky in the morning so they also wouldn't want to socialize with other people. Then if kids needed help with homework it would be hard for them both just because the kid wouldn’t want to co-operate with whoever is helping them and if kids don’t socialize enough their mental health could be affected and become really bad.
Kids tend to stay up late already, so having homework makes it even worse and also the pressure on kids needing to hand in their homework on time is real. Not only can this all affect their mental health it can also cause really bad anxiety and can affect other people because they’re worrying about the kids.
If kids are doing homework all day long they wouldn’t have time to hangout with their friends or even call/text them. Kids want to live their life without having to deal with going home everyday after school and have to do homework so if YOU want your kids to have a real social life and want them to have good mental health, ban homework.