$1 a Day Keeps Pregnancy Away?

In Greensboro, N.C. the College-Bound Sisters program pays teenage girls $1 a day to not get pregnant. The money is saved in a college fund and each girls receives the money upon her enrollment in college. The program, funded by a state grant, requires that the girls attend a weekly meeting in order to receive their incentives. I'm not sure how I feel about this. It's a rather unorthodox system, but it seems to be working. But I wonder if the program leaders teach the girls how to avoid pregnancy. Thoughts?