This is true. Here is a source from the School of Journalism at the Toronto Metropolitan University.
Gen Z is increasingly reconsidering having children due to concerns over affordability, economic instability, and climate change. Many young adults cite financial insecurity—such as high housing costs, student debt, and job uncertainty—as major obstacles to starting a family. Additionally, the rapid deterioration of the environment and worries about the future of the planet are pushing some to question the morality and practicality of having children and bringing a new generation to our planet.