Marijuana is a drug that has different side effects. Some people may be sleepy after they have used marijuana for period of time. Almost everyone feels hungry after using marijuana. Some side effects for people are different than others. No one should be high when they're driving no matter what the drug is. This is because it impairs their judgment and it also makes it more difficult for the driver to react.
They may be slower to react to something that is happening on the road than people who are not on drugs. Therefore, I do not believe that people drive better when they're high on marijuana or any other drug. People should be alert at all times while driving.