The majority of the friends I have from my life in VA do not want kids. The world is full of kids with indifferent parents, there's no need to feel obligated to have kids if you don't want them. Having a child that you're not ecstatic about is doing a disservice to that kid and to the world, so I think it's NBD to not have kids if you're not ready.
The only thing that makes me sad about all my friends that don't want to have kids that I think they'd make excellent parents. They're smart, capable and fun. They'd teach adventure and learning. They'd have self confident and lovely children.