What are some reasons girls wouldn't want to date a guy who smokes weed?

No one would want to date anyone that's a liability. And Smokin weed and doing illegal drugs is the path of someone that one day could get arrested,fired from a good job, or other numerous things. Anyone that docent like dating someone that dose these type of things is just looking at the big picture, there future. For me it's a big no no. The older i get the more i realize how evil smokin and booze really are.