What is this passage mainly about？

As to delinquent youth, decentralized correctional programs are more effective than traditional correctional practices.
B. Correctional institutions are superior to youth services bureaus in that they centralize delinquent youth.
C. Most delinquent youth are liable to be involved in new offences.
D. The reason why many experts prefer correctional institutions is that they succeed in rehabilitating delinquent youth.