Broken free of any semblance of family control or community restraints, thousands of American youth roamed entirely at will throughout the cities of 19th-century America and supported themselves alternately from the legitimate street trades and from outright thievery. The invention of modern adolescence was partially a response to this neglected…

One factor leading to the "invention" of modern adolescence was what the reformers saw as the corruption of youth by the city. The plight of youth set the stage for a child-saving movement during the last century, taking youth off the streets, putting them in schools, and stretching out the home-leaving age from 14 to 18. (Author/KS)