After teaching communications at a polytechnic for 12 years, 49-year-old Mr Kelvin Seah decided to quit last year and work from home so he could look after his two sons.

His wife, a 47-year-old social worker, felt it was important for one parent to be at home all the time to supervise Jaedon, 10, and Caleb, an eight-year-old who has moderate autism and global developmental delay - which means he lags behind his peers in two or more areas of development.