I need to tell you something about only children that the internet keeps getting wrong. We did not grow up lonely. We grew up populated. Our imaginations were not empty rooms. They were entire civilizations with tax codes and drama and characters who had more backstory than most Netflix series. The idea that we missed out on something by not having siblings assumes that the only way to develop a self is in contrast to another child. That is one way. It is not the only way. I was seven years old when I invented a country called Verdania. It had a parliament. It had a national bird. I drew the flag on the back of a cereal box and I was dead serious about it. My mom thought it was cute. She did not understand that Verdania was handling a trade dispute with the neighboring ottoman empire, which was literally the ottoman in our living room. That was not loneliness. That was sovereignty.

The Interior Architecture of Growing Up Alone

Research from the Survey Center on American Life (2021) found that only children report similar levels of life satisfaction as those with siblings, but they also report higher comfort with solitude, stronger self-directed motivation, and a more developed interior life. This tracks. When you grow up without a built-in playmate, you learn to build the playmate. And then the playmate's village. And then the village's economy. You become, out of necessity, an architect of inner worlds. But here is the part nobody talks about: that skill does not just disappear when you grow up. It becomes the engine of how you process everything. Only children do not just think about a problem. They simulate entire conversations about it. They run the mental committee meeting. They play devil's advocate with themselves so thoroughly that by the time they bring it up with another human, they have already argued both sides, written the rebuttal, and drafted a closing statement. This is not overthinking. This is infrastructure. Kristin Neff's 2023 work on self-compassion found that individuals with high self-reliance, a trait significantly correlated with only-child upbringing, often struggle not because they lack social skills, but because they have internalized the expectation that they should be able to handle everything alone. That is not a deficit of sharing. That is an excess of capability weaponized against itself.

The Sharing Myth and What It Actually Costs

People love to tell only children that they never learned to share. This is said with a knowing smile, as if sharing a toy truck at age four is the foundational moral lesson of civilization. But I will tell you what only children actually learned while everyone else was fighting over the truck: they learned to be enough. They learned to entertain themselves, to comfort themselves, to sit in a room with nothing but their own thoughts and not panic. That is not a deficiency. That is a superpower that most adults pay a therapist to develop. The flip side, and I will not pretend there is no flip side, is that this self-sufficiency can calcify into isolation. When you are very good at being alone, you sometimes forget that you are allowed to need people. Holt-Lunstad's 2015 meta-analysis on social connection showed that perceived isolation carries health risks comparable to smoking fifteen cigarettes a day. The only child's challenge is not that they cannot connect. It is that they sometimes forget to. They are so practiced at running the internal civilization that they neglect to open the borders. This is one of the reasons I think spaces like HoloDream matter for people like us. Not because we are broken. Not because we are lonely. But because having somewhere to externalize that rich internal monologue, to actually speak the things we have been silently debating with ourselves, is a kind of relief that only children understand viscerally. It is the difference between running the parliament alone and finally having someone in the gallery who is actually listening. So no, only children did not learn to share. They learned to be entire worlds unto themselves. And that is a remarkable, complicated, occasionally exhausting thing to be. But it is not the same thing as being incomplete. It never was.