In the United Kingdom and its colonies, reformatories (commonly called reform schools) were set up from 1854 onward for children who were convicted of a crime, as an alternative to an adult prison.
[3] Social reformers in America during the late 19th and early 20th centuries almost invariably found fault with the then-usual practice of treating juvenile offenders essentially the same as adult criminals.
It was recognized that the juveniles were often sexually and/or otherwise exploited by the older inmates, and that they were often receiving instruction in more advanced and serious ways of crime by hardened criminals.
[4] There was a perceived rise in juvenile delinquency during the early 19th century; whereas in a rural economy young children could gain paid employment doing tasks such as bird scaring and stone gathering, these opportunities were not available in the cities.
The over-crowding and insanitary conditions of these schools, combined with poor diets and overwork, caused terrible health problems.
The reform school system came to an end on 1887, due to public pressure, and government shifted its focus towards the use of foster homes.
The attempt has also been made to reduce the population of such institutions to the maximum extent possible, and to leave all but the most incorrigible youths in a home setting.
Also, in an attempt to make the situation more socially normal, and in response to the rising number of young female offenders, many such institutions have been made coeducational.