I'm from a very catholic country where people have a less than healthy relationship to alcohol. However, In the 90s there was a series of really rough PSAs about drunk driving plus a heavy crackdown on drunk driving, and nowadays it's extremely rare for drunk driving to happen, people will not even have a beer if they expect to drive, and there's even a service where you can call someone to drive you home in your car if you had a drink. It's got little to do with religion, and more with effective public policy.