Yeah someone brought that up to me..
It might be neat to have short hair at first, and maybe somehow you can pick a design that you want it to grow out into.. of course it might be too much of a bother.. I mean, what if you never cut your characters hair? I surely won't make sprites for hair past their feet
Maybe it can be like a customizable apple tree? Like for example, it's small/short at first, you pick what you want it to look like when grown, and then it grows to that style.. then you can get it cut again, and pick a different style to grow it out to if you want.. that could probably work.. would need about 3 different hair lengths for each hair style though..