How to break down this topic
First decide whether the prompt asks about ageing society, low birth rate, migration, or population control.
IELTS Task 2 population topic prompts often turn ageing, birth rates, and public-service pressure into a common-sense list instead of a scorable argument chain.
Limit the angle before choosing examples.
Only writing that old people need care misses labour force, tax, and family responsibility.
If young workers, taxpayers, or families are missing, population argument is usually too vague.
First decide whether the prompt asks about ageing society, low birth rate, migration, or population control.
Write one population chain: age group -> resource need -> social pressure -> policy response.
These pages explain the Banfen Writing diagnostic and blocker-repair method, Task 1 overview, Task 2 development, and common score blockers.
Submit one Task 2 essay and see which layer, task reading, position, or development, is holding it back.