First off, kids as young as 7 can join their parents or older siblings on adult-sized go karts if they’re accompanied by an adult. However, most go-kart tracks have some basic guidelines that all drivers must abide by before taking part: 1) Drivers should be at least 8 years old; 2) Must be able to reach the pedals; 3) A responsible adult must accompany children under 18 years of age; and 4) All drivers need to wear safety helmets provided by the track. In addition, many tracks also require younger drivers to complete a training course prior to driving on the racetrack. This may include classes about vehicle dynamics and maintenance, racing line studies, cornering techniques, and more. The duration of such courses varies from track to track but typically ranges from 30 minutes up to 2 hours depending on each individual's skill level. To sum it up then: 8 years old is generally accepted as the minimum age requirement for go karting in Singapore - although anyone below 18 must be accompanied by an adult - with additional restrictions or regulations possibly applicable based on specific requirements set out by different tracks around the country.