There are many ways in which one can become a curler and your experience may vary based on athletic ability, personality, and the availability of events/leagues. Most people start with a 2 hour lesson which could be in the form of a Learn-to-Curl, corporate event, Learn-to-Curl party or a private lesson, all of which may be repeated until you feel comfortable moving on.
From there, one may attend an advanced Learn-to-Curl or jump directly into a novice league or an instructional league. These beginner leagues are your bridge to becoming a member (if not already) and entering a member league. They are typically not repeated more than once, but it all depends on how quickly you pick up the sport, and your personal comfort level.
Cost for a traditional Learn-to-Curl is $25 for adults, $12.50 for 18 and under.