I used the "naked" method with my son and he trained very fast. He was ready for it, asking sometimes to go to potty and delivering #1 and #2, but he was lacking consistency. I encourage parents to follow this method or the "underwear" method during vacation time when I see they are ready, but ask for pull ups at daycare. I would never do it at daycare. I could not stomach picking other kids poop from the floor or others getting all battered with pee or poop. When I did it for my son I have to keep a close eye to clean the mess fast. I do not know how could I have done it while changing others diapers, fixing meals or going for washroom breaks.