There are differences in the requirements for child care centers, group child care homes, and family child care homes. (philadelphiachildcare.org)
Similarly, my second recently started preschool at 22 months, and while she's been visiting the school since birth, she has never been in group child care. (gooseling.com)
My second started preschool just before turning two, but she had visited the school almost daily since birth, so even as her first group child care, was an easier transition. (gooseling.com)