YO! Baltimore opened its doors in 2000 and has a proven track record of helping young people increase their wage earnings and educational attainment, while reducing the number of early births and reducing recidivism among active participants.   The mission of the Youth Opportunity (YO!) Baltimore is to help City youth receive the education and career skills training needed to become successful adults. YO! serves out-of-school youth, 16 to 22 years of age who are residents of Baltimore City .