Many tourists choose the places they want to visit, in part, by the availability of things such as legal prostitution, drugs, alcohol, or gambling. This is even mentioned in-game: Gambling states in its description that it encourages tourism, and the description for the tourism ad campaign mentions showing off our “tasty beers to drink”. However, none of the related policies have any effect on tourism.
Gambling, legal sex work, and legal drugs should each increase tourism. Since most countries have legal alcohol, there’s no real need for an increase from it, but strict alcohol laws should have a negative effect.
Also, while this isn’t a vice by any means, I think it’s safe to say that women would be less likely to visit places that forbid them from driving.