There is the common abbreviation that you'd see in social media now like in TikTok about couples decided to be a DINKWAD.
"Double income no kid with a dog/s".
They like to have no kids at all and as a couple, they're pouring their love to the dogs that they have. And there is nothing wrong if you don't want to have kids. But a country that has a lot of citizens that have this mindset could impact their future economy. I think Japan and South Korea are having this less birth rate on them and the people from their economy could be lesser but a good thing is they can always export people from foreign countries to have their jobs filled by them.