In most areas where trick-or-treating is practiced, it is strictly meant for children. In fact, there are a diversity of opinions regarding when to end trick or treating, the most restrictive of which is age 12, the least restrictive at any age, and a common rule of thumb being "if you are old enough to drive a car you are too old to beg strangers for candy". It is generally expected that a teenager will transition into more mature expressions of celebrating the holiday, such as fancy dress, games, and diversions like bonfires and bobbing for apples, and sweets like caramel apples, and teenagers will often attend school or community events with a Halloween theme where there will be dancing and music. Dressing up is common at all ages, adults will often dress up to accompany their children, and young adults may dress up to go out and ask for gifts for a charity.