Alcohol is completely unnecessary for survival so it is frivolous. Perhaps frivolous wasn't the exact correct word but you should have gotten the idea unless you just want to argumentative. The reason that I singled out alcohol is that I have traveled with way too many friends that cried poverty yet were drinking just about every opportunity that they had. they were trying to travel on a $10/day budget (it seemed) and were complaining about money even though they spent a lot on alcohol.