I am also a cold-turkey integrater. If a parent needs to ease the child in, which I understand, then I will do a couple hours to start, then a half day, then 3 days of full days, and so on. But from day one, mom/dad don't come in any farther than the front entry. I would not feel comfortable being "on display". They will see how I interact with the kids at drop off and pick up.
In many cases, it's not the child with the greatest issue, it's the parents!

