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 through a working visa.
Being DINKWAD is a life choice and is no one to judge someone who does not want a child and would rather spend their time raising pets or do something less restrictive in their life. Nevertheless, when large numbers of people in a country follow this lifestyle, then there is likely to be impact on the population growth and may slow down economic growth over the long term. Countries such as Japan and South Korea already experience aging populations and decreasing birth rates, which can cause problems to both labor supply and the social system. Immigration and foreign workers can contribute at the same time, but it is not the ideal solution. It is the compromise between the choice of individuals, as well as national demographics.