A family church, that's the first problem, what ever happen to Christ's Church? God has and will always have a vision for His church, and the bible does explain that vision very clearly. They probably feel safe with in their own circle, A churche's growth is done by the work of the spirit, it was the spirit that first born the church and and the effort of spirit filled people that made it grow and spread. Your folks obviously sense a problem because they want to move out of the comfort zone of family only, which could be Spirit stirring the pot. But always remember, "It's not by might- not by power, but by my spirit" and "Seek and you will find, Knock and it will be open to you." I hope it's time to stop being a family church, and start being a church that is a family. Stay focused and blest.