But it can be very bad for your hair. Washing it so much everyday can dry it out, and cause hair loss.
You should leave at least a one or two day gap between washes.
^ It's good to care about your hair, but doing that too much can really hurt it. You have to think about that. And I doubt it would get too dirty if you left it alone for a day. :P
It's actually not good for your hair or scalp to be washed that frequently regardless of what type of hair you have. It can seriously damage it, by drying it out too much. Shampoo washes away the natural oils in your scalp and if you're washing it up to 5 times a day you're not allowing your scalp to produce it's natural oils at all.
If you have severely overactive oil glands in your scalp, then I suppose it's fine.
If not, then just try using a dry shampoo, you can find some anywhere. They allow you to clean out the oils without using water, which sucks out all the moisture.
