This trend is more pronounced in the "more developed" countries (UNFPA, 2015). Today, however, such support is under pressure from the fall in fertility rates (which means fewer children as caregivers) and the increased longevity of older persons, as well as changing cultural norms and the migration of rural young people to cities and away from older relatives (Population Reference Bureau, 2006). This situation necessitates a change in focus on die role of primary health-care professionals (OECD, 2015).