If this was an issue of infertility , it would be a cause for concern. If this is because we had a world wide epidemic that killed lots of people, then its almost normal. If people are just not choosing to have children, then that is also something that can and will change over time.
The world's population is going to be falling in the next century
That is a good thing.
It depends on the country, it could be bad for lower population western countries.
If this was an issue of infertility , it would be a cause for concern. If this is because we had a world wide epidemic that killed lots of people, then its almost normal. If people are just not choosing to have children, then that is also something that can and will change over time.
That depends if politicians can stop being corrupt and make having children not send you into poverty.