"The small group is the unit of transformation"
Taking next steps in a group is fun and growthful. There's a "more than the sum of the parts" benefit; we learn things we can't see as well on our own. Mutual support and kinship available too.
I've been involved in groups for 30 years as participant and as leader / co-leader for hundreds of hours.
We need each other and can't do it alone. Especially now with the complex problem of social control facing us. Isolated we easily fail.