The community was created in the 70s. Back then it was more political, today it's more practical. The age demographic is more or less flat (0-85) with a dip around late teens (we're in the countryside to most young adults choose to move to the city). We own the property together and cook and eat together five days a week. We have various shared workshops, depending on what the need/desires are at any given time. While we don't farm the land ourselves (not enough land), we try to buy local and organic produce whenever possible.
Cooking for many people, sharing tools, common areas, etc, saves a lot of money and resources. We are thus able to support a wide range of income levels. With the caveat that we're in a fairly equal country (Northern Europe), the community attracts a wide range of backgrounds, from unskilled workers to teachers and doctors. Everyone gets chores and responsibilities assigned based on personal priorities, skills and the needs at the time.
We have a "rule-book" that defines a democratic voting system for making decisions. We hold meetings every other week. I would lie if I said it was always pleasant or easy, but it does work surprisingly well. I think it helps that the place is around 50 years old, so we've had the chance to learn from mistakes and update the "rule-book" along the way.
I don't think it's for everyone, and I'm not sure how well this scales beyond 50-100 people, but I do think that you can be happier, healthier and wealthier living in suitable small-scale communities, sharing everyday tasks and tools. Instead of everyone owning their own everything.