College students and lawmakers gathered at the University of Maryland student center to tout the change in Maryland state law which allows many young people to stay on their parents' health plans until age 25. Previously, young adults dropped off their parents' insurance policies at age 19. In some cases, students could stay on until 23. Under the new law, those whose parents work for the federal government or for small businesses are not eligible. But the advocates said they hope eventually to expand the coverage.