Being childfree primarily means you don't want kids. It's really that simple, and kind of astounding that it's still a fairly small subset of people.

To me it means not bringing another wage slave into the world, not bringing another person into the world that capitalism will chew up and spit out. Loving my potential kids enough to not subject them to ... This (broadly gestures at everything). Imo you'd have to be a sadist to have children in todays climate.

But there are of course secondary reasons, I like free time, I like sleeping in on the weekend, I like disposable income. And I'm not in a financial position to be able to have these things and also have kids. I have no interest in interacting with other parents to setup a play date. I don't want to hang out at playgrounds, I don't want to do the school pickup/dropoff, I don't want to watch Disney movies or Bluey. I just don't want to live the lifestyle that is being a parent.

I also have neices and nephews who I love more than almost anything. So I get more than enough kid time. Being the favourite uncle is exhausting and there's no way I have the energy or patience to do that full time.

So between not wanting kids for their sake, not wanting them for my sake, and not wanting them for the sake of the environment, I choose to not.