A cord made of three strands if stronger than a single rope. More than ever, we need to consciously choose to live in community with others. We need God. We need others. Being in a small group helps us find both community with others and communion with God.
Committees hold meetings, make reports, and work for some other controlling authority.
We've removed most of these formal elements in our small groups to set people free to learn and minister in their own ways. No, you don't. Jesus promised he would be with us when we meet together in His name. Jesus talked to the crowds, but at the same time he gathered together a small group of 12 to work with closely. He helped them to learn and grow.