It depends on where you are. The busier places will all speak English fluently....it gets questionable when you venture outside those zones though. I was in Spain this past summer and virtually nobody spoke English outside of the tourist traps. France was a different story, they all spoke English, even in remote areas. The younger people get the better the chance they speak English in my experience.The language barrier was almost zero in my opinion. English IS the universal language. I walked into my hostel room in Italy to witness a Korean girl and a Brazilian girl talking about their day in broken English.