I have done visits in the past where the parent stays for an hour and I don't charge for this. If they want and I'm able to accommodate, they can send their child alone for 4 or less hours and pay half fee for the week prior to starting. This is only for a week though and after that it's full fees.

However, I have started to get away from this. I explain that from experience, children transition better if they are just thrown into dc and the routine and the impact it can have on the other children. If a parent really really wanted it I would allow it to an extent. I would do one 1 hour visit with them as it allows them to see me in action. I try to put myself in their shoes and I completely understand why parents feel the need to have these visits, especially with home daycares. If I put my child into someone's home I would feel extremely guilty if I didn't make 100% sure it was safe.

In the end, it's totally up to you. I have never had anyone pull their child because I wouldn't allow a visit but be prepared that some may as it would be a red flag to some parents.