As church leaders, we have many "groups" of people to focus upon - children, youth, college-age, singles, couples, parents, grandparents . . . definitely no shortage for sure! But, if you read this blog, you likely focus on children - and maybe families as well.
So, for you, including grandparents in your, "definition" of the word "family" makes a lot of sense. Grandparents have the unique opportunity to influence their grandchildren for Jesus. They are people who tend to be some of the strongest prayer warriors for their grandchildren and are often the people grandchildren are able to talk with about how they feel and what they are facing in their lives. If they have focused on intentionally building a relationship with their grandchildren, grandparents are often people who are able to talk with their grandchildren about God and His Word and have them listen to them, because of the relationship they have with them.