Complex sentence: Youth Outreach was formed in 1991 due to the proposal of the Hong Kong Council of Social Service (HKCSS) to help with crisis prevention and the healthy development as well as professional counseling services to the youth incapable of handling life crisis incidents on their own.
Split into simpler sentences: Youth Outreach was formed in 1991 due to the proposal of the Hong Kong Council of Social Service (HKCSS) to work for youth life crisis prevention and youth healthy development. It provides professional counseling services to the youth as well, who are incapable of handling life crisis incidents on their own.