Leave the light on

Tonight, at bedtime, WA asked for a light to be left on for the first time. He's slowly been developing a fear of dark places. For example, he won't go to the potty at night unless you turn on the light for him (even though he's perfectly capable of doing it himself), he won't go upstairs by himself either and for-get-it if you turn the light off and leave the room while he trails behind. So tonight I left the bathroom light on and his door ajar. We'll see how that works...