Grandparents can enrich a teenager's life in many ways.
The problem is that many teens find visits to grandparents dull and try to avoid spending time with them. In our house, every Thursday is Grandma day. Whether our teens feel like it or not, they go to spend the day with Grandma. We generally take her shopping, so they object somewhat less than they might otherwise. If a grandparent is older and perhaps in poor health or with a poor mental state, it is important to help your teen learn who their grandparent was in younger days.