In some countries, children are legally obliged to go to school until they are 14 or 15 years old, but may also work before that age. A child's right to education is threatened by early marriage, child labour and imprisonment.
The Straits of Mackinac separate this lake from its neighbor, Lake Michigan. The only one of the Great Lakes entirely in the United States is bordered by the Upper and Lower Peninsulas of Michigan, as well as bit of Indiana and Illinois, and there's a lot of shoreline along Lake Michigan in Wisconsin.
The largest lake in the United States on the basis of water volume is Lake Superior with a volume of 2,904 cubic miles (12,104 cubic kilometers). Lake Superior is the single named lake with the largest surface area in the United States at 31,700 square miles (82,103 square kilometers). However, as mentioned above, if you consider Lake Michigan and Lake Huron as a single lake, then Lake Michigan-Huron has the largest surface area at 45,410 square miles (117,611 square kilometers).