Identify community services that are shared by everyone, such as fire, police, libraries, and schools.
A community service is something a whole community shares and uses together, instead of everyone buying their own separately. Firefighters, police officers, public libraries, and public schools are all community services.
Community services are usually there for everyone, whether or not you personally use them every day. Even if your house never catches fire, the fire department is there and ready, for you and for your whole community.
Mastery looks like: They can name several real community services and explain that they are shared by and available to everyone in the community.
Common stumbles: Thinking a service only "counts" if they personally use it often, instead of understanding it is shared and available to all.