Students Shouldn't Have HWK

Nowadays, children have a lot of homework. Apart of the hours that we have at school, teachers send us homework to do at home. In my opinion, we (students) shouldn't have homework.
I definitely think that homework it's unnecessary, because the things that we do in class, then we have to do them at home. I strongly think that homework it's only to have something to do at home so to not get bored.
Of course, I really agree, that there are some disadvantages if you don't have homework. Some of them would be that without it, we can't practice for the exams. This implies that we have to study with no practice. I truly think that also, people can get lazier. If you aren't used to work, if you had homework, you wouldn't wanted to do it.
As far as I'm concerned, if students wouldn't have homework I'll be very happy about that. And of course, I think that also many students.