MY experience from a different perspective - I have had clients who came from a day home where the provider had a baby and planned to bring in a cover. The issue for my clients was they interviewed a specific provider in a specific house. They didn't interview the person who was going to provide cover. Had they not been concerned about the individuals caring for their child, they would have used a center. They wanted a more personal relationship and chose a day home and a specific person.
Their contract was with the provider they chose and not someone covering her role. The provider was in breach of the care contract and they departed her care. I've had several client's over the years with this story.
Clients contract with YOU not a person you chose to run your program. You will lose some client's.