How Anyone Working in Education Can Secure Their Future

We are facing a future of declining birthrates and empty classrooms. Right now the number of children in the world is past its peak and faces a long term decline. Teachers are facing with working in a declining industry, with declining wages.
The solution? In the UK the average number of children in a class is about 20. If 20 children were born to every teacher, female and male(I should to think it it), in effect they would be working in a sustainable occupation and guaranteed work as long as they could keep breeding like rabbits