(CSMonitor) - Starbucks is introducing beer and wine to its beverage list in select locations, calling it a response to consumer requests. But many café chain regulars say they fear a change to a bar atmosphere.Starbucks has been working hard on new beverages to sell, including energy drinks and a line of fresh juices, but the strategy that is generating the most buzz – both good and bad – is the Seattle-based coffee house’s move to sell alcohol.