ATV tours on Koh Samui are safe for most people when you ride with a licensed operator, wear the helmet provided and follow your guide. The quads are automatic and easy to control, guides adjust the route to the group's experience, and beginner tours stick to wide, gentle tracks.
To ride safely, choose an operator with strong reviews, check that the machines are well maintained, listen to the safety briefing and never ride faster than you are comfortable with.