E.N.
Dear Sylvia,
I know that the John Robert Powers Modeling School holds a social graces and cultural interest activites in Philadelphia. I do not know how expensive it is, but many years ago, I attended the school and was very pleased with what it had taught me.
You also might want to check out the Philadelphia Art Museum as it holds several week courses that are interesting and entertaining for all different levels of young people. My daughter attended one of the courses on artchitecture, and completed a 3-dimensional project.
The summer programs at the high school near me offers a television and videographer courses for young people in the district. You might want to check out the high school in your area to see what is available. The opportunities are there....good luck.
E.