This section has been expanded to more commercial areas and mobile homes in the 2017 Code. This section 406.12 now covers more commercial areas where these types of receptacles are needed. They figured out that children not only get hurt in the home, they can get hurt at the airport, in the doctors office, and in mobile homes.
This is a 2017 CODE change and it will not go into use until January of 2021.
Till next time be safe work safe.
Jake