Limitation on location. Class 1, 2, 3, 4 and 6 licensed cannabis establishments shall not be permitted within 500 feet of any existing Class 1, 2, 3, 4 and 6 licensed cannabis establishments, with the exception of those owned and operated by the same entity, or any primary or secondary educational institution, house of worship, or park or playground. The distance shall be measured in the same manner as that required by statute for the measuring of distances between licensed retail sale of alcoholic premises, schools and churches.