Your grandchildren may not exist

Not because people don’t want them. Because the structure of modern adulthood got there first.

My grandmother assumed my mother would have children. My mother assumed I would. I didn’t.

That chain, the quiet assumption that the next generation continues, is something most people have never had to question.

For the first time in modern history, they might need to.

Across developed countries, the share of adults never becoming parents has roughly doubled since the mid-twentieth century. In some countries, projections suggest it could reach one in three for women born in the 1990s.

The odds of that generational chain continuing unbroken are no longer a given.

I’ve been calling the threshold where the majority never become parents Generation Zero. Not as a prediction or a political statement. As a description of where the data is pointing.

The part I keep coming back to: we won’t know which generation crosses that threshold until they’ve already lived their lives. By the time we can name it, it’s done.

This piece is about that threshold and about the generations now forming their picture of adulthood inside a very different set of signals than any generation before them.