These assumptions are simply untrue. Small churches are fundamentally different from churches larger than 70 in average attendance. Small churches are family churches. They look and act like family. People who come to a small church and stay, come for different reasons than people who join other sized churches.
Relationships drive the small church.
Everybody wants to know everybody and everything about everybody. People know how to take care of people in small churches. In small churches, people don't join the church as much as they become family. Small churches hire pastors to do what the family needs done. The pastor is hired to be a friend of the family.