C.C.
My husband is the one who drops off our son at daycare and he had this same issue. He found that if he gave some of the control to our son then he responded better. To do this, he would have Sebastian walk him to the door, open it and then close it behind daddy. There are still a few times when this doesn't work, but for the most part drop offs have been 100% better. Our son started daycare at 18 months and is now almost 2.5 and will at times just leave dad at the door and run off to play.