There is a strange measure of success that many desirable communities eventually confront.

People want to live there.

Home values rise. Neighborhoods become more sought after. A house bought decades ago becomes worth far more than its owner ever imagined. And eventually, the children who grew up there discover they can't afford to come home.

That tension is increasingly familiar in Rhode Island's East Bay, where communities such as Bristol, Portsmouth, Warren and Barrington have become extraordinarily desirable places to live. For longtime homeowners, rising values can represent financial security built over a lifetime. For the next generation, those same values can look like a locked door.

We usually describe this as a housing affordability problem. It certainly is one.

But it is also a question about what makes a community a community. What happens when people can grow up in a town, attend its schools, work their first jobs there, celebrate its traditions and still find that, as adults, there is no realistic path back? The loss doesn't happen dramatically.

A young person leaves for college, military service or a first job. Years later, parents and grandparents are still back home. Childhood friends may be nearby. Perhaps that person imagines raising children near the same parks, schools and traditions that shaped their own childhood. Then comes the math.

The modest first house isn't so modest anymore. Rent makes saving for a down payment difficult. Buying close to family moves further out of reach. Eventually, "home" becomes somewhere you return for holidays rather than somewhere you can build your adult life.

No one has to be at fault for this to happen. Longtime homeowners aren't doing anything wrong when their property appreciates.

Communities aren't wrong to protect historic buildings, open space and neighborhood character. Those are often precisely the things that make a place worth preserving.

But preservation raises a harder question: What exactly are we preserving if the next generation of the community cannot afford to become part of it?

A town is more than its buildings. It is grandparents who live close enough to help with a child after school. It is adult children who can help aging parents without planning a trip around it. It is cousins growing up near one another and young families whose connection to local traditions began long before they bought a house.

Those relationships are difficult to measure on a planning document. They're also difficult to replace once they're gone.

Bristol happens to be asking questions about its future right now. The town is updating the comprehensive plan that will help guide decisions about housing, development and preservation for years to come. That makes this a particularly good time to think about what "preservation" really means. Preserving a community cannot mean freezing it in place.
A beautiful town can preserve its architecture and appearance while gradually losing something less visible: continuity between generations.
Rhode Island is trying to address its housing shortage, and communities throughout the East Bay are wrestling with how and where to add housing without sacrificing what residents value about the places they call home.

There are no easy answers. More housing alone will not guarantee that someone's children can afford to live nearby. New development brings legitimate questions about infrastructure, density and character. But those complications shouldn't prevent us from recognizing what's at stake.

Housing isn't only an asset. It determines who gets to stay. Who lives close enough to have Sunday dinner with their parents. Who can help when an aging mother needs groceries or a father can no longer drive. Who raises children near their cousins and grandparents. Who gets to say, decades later, "I grew up here," and still mean here.

There is an understandable instinct in desirable communities to protect what makes them special. Nobody wants growth that destroys the very qualities that attracted people in the first place. But community character isn't only about what buildings look like. It's also about who gets to live inside them.

A hometown shouldn't become a place you can inherit, visit or remember, but never realistically afford to return to. Because eventually the question isn't simply whether our children can afford our houses. It's whether our communities can afford to lose our children.

Jay Werther is a graduate of Roger Williams University School of Law and an opinion writer whose work explores work, community, recovery and second chances. He lives in Summit County, Utah.