It seems that to participate in group activities you have to bring friends you have nowadays instead of going out and making friends. My view might be wrong.
>The few new meetings that did take place tended to be with others who were like themselves: the consultants talked to consultants, and the bankers talked to bankers. In terms of both new conversations and diverse connections, the most successful networker at the event turned out to be the bartender. https://hbr.org/2018/05/go-ahead-skip-that-networking-event
Similar to the biases related to the fact that the majority of psychological studies were run on predominantly rich, predominantly white students at well-funded universities?