China, Japan, Italy are seeing falling birth rates, and their populations are predicted to fall by half in the next 50 years.
In these countries and many others around the world. Young adults are choosing not to have a family, or to delay having a family, because it is too expensive – they are not able to afford the costs to start a family – housing, education costs. Also the opportunity cost to give up earnings and “sacrifice” a career. Many are choosing a career.
The problem exists in all developed countries – UK, USA, and it would be even more obvious if it wasn’t for immigration, but immigration is not a solution because it doesn’t address the root problem – young people choosing not to have children.
This can cause enormous economic problems for the future.
If there are less young people, and a shrinking population, the economy will contract, and there will be an even greater burden on young people, who will have even less children, it is a vicious cycle.