The UK is experiencing significant demographic ageing, characterised by a rising median age and a growing proportion of the population aged over 65. Which of the following is a primary social or economic driver of this trend in UK population change?
A decrease in the average age of first-time mothers, leading to larger completed family sizes
Advances in medical technology and public health initiatives that have significantly reduced late-life mortality from circulatory diseases
A sustained decrease in the cost of adult social care, encouraging larger multi-generational households
A persistent net outward migration of young, working-age individuals to other European nations