Enrichment classes for children are a huge industry in Singapore. Almost all Singaporean children take classes outside of school (known as "tuition") in various academic subjects. Art classes, music classes and language classes are all popular too. Personally I am not really a fan of children taking lots of extra classes, because unstructured playtime is so important to cognitive and social development. However, R does take swim class once a week since I want her to 1. be comfortable in the water and 2. not drown.