I can never get my hands right in the middle and invariably touch the sides, thus requiring me to wash my hands again.
I don't have that problem, which is odd because I have pretty unsteady steady hands usually. Now, this is a completely serious question. If you re-wash if you touch the dryer, how do you get out of the bathroom without touching the handles on the doors given they always swing inwards ?
That's why I like paper towels vs all this air dryer nonsense.
Btw, if you shake your hands for 5 seconds after washing, you can dry them with a single sheet of even the thinnest, crappiest towel. The trick is to fold it in half a few times first, so it can absorb more liquid without tearing. Then simply use it afterwards to open the door, hold the door with your foot, turn and toss the towel into the trash. Voila.