A study for Big Brothers Big Sisters found that kids matched with a Big Brother or Big Sister*:
Are more confident.
Are more likely to steer clear of drugs and alcohol.
Do better in school.
Get along better with their family and friends.
Feel better about themselves.
*Tierney, J.P., Grossman, J.B., and Resch, N.L. (1995) Making a Difference: An Impact Study of Big Brothers Big Sisters. Philadelphia: Public/Private Ventures