In the first states that legalized recreational use of marijuana, it is believed the initial spike in car collisions was caused by the newness of being able to consume marijuana legally. Many of these initial states also used marijuana's legal recreational use as an advertising tactic to draw tourists to these states. Even after the newness wore off, the number of crashes in states with legalized recreational marijuana still tends to be higher compared to states where it is still illegal to use marijuana recreationally. Furthermore, many drivers do not believe the effects of marijuana will impair their driving like alcohol. As a result, more people are likely to get behind the wheel after using marijuana.