Every U.S. state with the exception of New Hampshire requires its drivers to purchase liability insurance to drive legally. However, collision and comprehensive are optional, even though nearly four out of five drivers choose to purchase these coverages.
Collision pays for damage to your car resulting from a collision with an object (e.g., a telephone pole, a guard rail, a mailbox), or as a result of flipping over. The average cost is about $290 per year. Collision coverage reimburses you for the costs of repairing your car, minus the deductible.