Biologically, a child (plural: children) is a human being between the stages of birth and puberty. The legal definition of child generally refers to a minor, otherwise known as a person younger than the age of majority.
Four of the five Great Lakes border Canada: Lake Erie, Lake Huron, Lake Ontario and Lake Superior. Lake Michigan is the only one that does not border Canada; it is located completely within U.S. borders. Keep Learning.
According to the Library of Congress (see link below), Ohio shares a 146 mile border with Canada, and Pennsylvania shares a 42 mile border with Canada. Also, Michigan also shares a border with Minnesota and Illinois - neither are listed. Illinois shares a border with Michigan - it isn't listed.