Why the Prohibition was a Bad Idea The prohibition increased organized crimes people started to think less of breaking the law instead of drinking because it was also illegal and expensive they started to use more drugs it increased the use of home made whiskey which could be dangerous if not made right. the closing of businesses that sold and produced and sold alcohol put a lot of americans out of work. The city and state governments lost a lot of revenue. The prohibition effected the speak easies the number of speakeasies where owned by mobsters people used these instead in place of neighborhood bars when they were band. They promoted heavy drinking, gambling and prostitution. In new york they estimated to have more speakeasies than