B.C.
When my son was brand new, there was a news report about two 6 month olds in a home day care who suffocated from being put to nap on a bed with pillows around them so they would not fall off.
The day care woman was planning a birthday party for her own kids and thought it would be a quiet place for them to nap, but the babies pulled the pillows onto their faces and died.
As a new mother - I just could not deal with it.
I felt a commercial day care might not be like home, but with people coming and going all day long and multiple care givers looking after the babies - there would be a better chance that infants would be handled safely and be kept alive till I could pick him up at the end of my work day - that was my highest priority.
With multiple care givers - they can take a break every so often and are less likely to lose it if they have a colicky infant to care for.
(Also, the commercial daycare we used had a fire department and EMT's right across the street - which really made me feel better.)
Now there are plenty of home day cares that are absolutely fine and wonderful but it was just not something I felt I could trust.