Most kids don't like school. But school taches you things that sets you up to be able to do things in the real world. Thats why its important that we have 9 instead of 5.
Enjoy those nine months. When you get a job you will find that some four weeks of vacation a year is much worse, and you will think back at having that little hours and so much time to spend on whatever you liked.
That said, that is a bad argument against schools, and your opening post is flawed. It also seems to be a deflated point for discussion simply because it seems illogical to most. So lock.