LOL @ EXTREMELY pro-kids minded people, that are all like: "you're so freaking selfish for not having kids!!!11" As if your decision to have kids is not JUST as selfish? As if you're doing it as an act of charity, as opposed to just selfishly WANTING to breed? It's ridiculous.
In the end, they are BOTH selfishly based, in most cases. Both the decision to have kids, for the people who want them, and the decision NOT to have kids, for the people who don't. But in the end, the latter is still FAR better for the world at large!! In terms of NOT contributing to exponential population growth, on a planet that's already WAY overcrowded with humans, and at a high risk of going to utter sh*t because of it.
Childfree person. (Who's neither gay nor straight, for the record.)