As a grandparent, you have a lot to contribute to the well being of the next generation. You may even feel that your grandchildren need a lot more than they are getting from their parents. But under Pennsylvania law your rights are limited at best.
That doesn't mean you can't have custody or visitation with your grandchildren, however. It can be a long fight, but it is possible. The courts do recognize that sometimes it is good for grandparents to be involved or even have full custody.