While food security has increased in importance globally, the availability of cheap and nutritious meals at hawker centres is particularly central to Singaporean life.
The hawker stalls that serve up traditional favourites such as char kway teow* and Hokkien mee (both noodle dishes), are regarded as a safety net for the poorest as well as a place where all levels of society meet. Politicians are conscious of the need to keep a lid on prices at these stalls.
That is from Jeevan Vasagar at the FT, and the article is interesting throughout. In earlier times, the hawker centres also were conceived as ways of improving public health (easier to monitor than street carts), subsidies to working long hours (quick food on the way home), and a means of making high-density construction, and thus small kitchens, bearable.