Siti Maesaroh, 24, offers a fellow Indonesian classmate pretending to be an elderly person from Japan, an empty cup of tea before tying an invisible apron around his neck.

As the number of elderly people in Thailand continues to rise, Department of Health director-general Dr Panpimol Wipulakorn predicted on Monday that the country would have more than 20.5 million senior citizens by 2040. She therefore instructed all public officials to urgently conduct healthcare promotion to tackle age-induced ailments.