Mine has an integrated blow dryer, and I usually follow up with a bit of TP to clear up any remaining moisture. Even without a dryers it's not that much water. A few seconds to drop dry and TP will be sufficient.

You use like 2 squares of toilet paper to dry yourself instead of the many more it takes a man to get not nearly as clean. It's more about actual cleanliness - you wipe yourself and there's no poop, instead of residual poop forever.