I am the same as bright sparks and mom of 4: Ime, dcks transition much more quickly if they just start ft right away. After a bunch of transitioning issues with part timers, I now only take a part time child over 2. Maybe it's just the two that I have now, but only a few days of crying at drop off and then they were fine. I think it's too hard for babies to only do a few days a week.