A viral video of an interaction between a fitness influencer and an elderly toilet cleaner in Singapore has sparked discourse on the city state’s work culture for seniors.In the Instagram clip, Jaden Laing, an Australian strongman, greets the older man, who is dressed in his work uniform, in a washroom. The latter shares that he is 91 years old and on a 12-hour shift that would end at 7pm.“How are you so healthy?” asks Laing, who follows up with questions on the man’s exercise routine. The...