tell me why

After 6 books that have been released, can you tell me why there was no mention of the main characters of Harry Potter taking a bath? The fourth book about the triwizard tournament being an exception. We found out that there is a big big big bath tub for PREFECTS only. So, do they have to be motivated by life threatening situations before they even wet their hair? Are Prefects the only one who has the right to be squeaky clean and stink-free? Why is that Hogwarts does not house any more baths that is open to the general studentry besides that of the the one only for prefects? For the professors? How about them?

Harry, living in Privet drive over the summer doesn't even go to the bathroom for anything. Surely the Dursley's would have a water closet lying around the house.

I am just so diturbed with the thought. It is just so weird that they don't even feel the need to wash away filth.

But, I have come to a conclusion... Their wands!! Though there was never any mention of them swishing around their wands onto themselves to get cleaned up though. Is it too private of a matter that you couldn't get even a hint of it that they take care of their personal hygiene?

And then I get disturbed again. Oh, the cycle... the cycle...