It is my observation that sticky rice and noodles are far, far easier to clean off a high chair (not to mention a tile floor) when they have had a few hours to dry out. When dry, they simply sweep up. Not so when they are gluey wet.
Knowing this, do you think I always rush to clean them right up so my kitchen shines each night before bed? Sometimes.
Sorry, Fly Lady. I still love you!