Judy nailed it! The parents should make sure they know the schedule and have their child on the same basic routine for meals and naps so their bodies are ready for an easy transition there.

And I have had the 'you don't have to pick them up every time they cry' talk many times with parents. Of course when they start with you at daycare you need bonding and transitioning time for a while so there are extra hugs but they have to learn to play independently and with their friends and not to need an adult's attention all the time.

I find anything else can be learned with some time and by having routines in place. You get to know the children very well when they start with you and can work on areas where they may be behind and catch them up depending on their ages.