My personal opinion - drinking in moderation isn't a sin but it's something that a believer should practice wisely, if they practice it at all. We're encouraged to not be a stumbling block to those around us, so if in the company of others (especially those I know have had an issue with alcohol, those who feel it's a sin, or those young in the faith) I typically will not drink. If I know the person well and know that they also feel a liberty to have a drink from time to time that's a different story. However, I can't even remember the last time I had a drink, it's not something I do often nor something I desire on a regular basis. I attend a church with a very strict view on drinking, that even a sip is a sin. I do think it can be a slippery slope and if one knows they have an addictive personality it's probably wise to just stay clear of any alcohol.
Just my two cents, y'all be blessed.