Are you wanting parents to pick up and drop off at the same time? In my contract I state that the families need to contact me if there child is going to be later then 9am. If I do not hear from them I carry on with my day and assume they are not coming (it only takes one or two times for them to realize that if they want there child in care they should be there on time or they might miss us as we are heading out the door to the park ). Does any of that help?