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 without a sea coast is  Chicago, but Chicago has gigantic Lake Michigan. The largest without a sea coast or big lake is Philadelphia, but Philly sits on the banks of the navigable Delaware River. The largest without any significant naturally-occurring water at all is Phoenix.