Why Starbucks is not popular in Italy?

Could you explain why Starbucks, a brand that has become a global phenomenon in the coffee industry, hasn't managed to capture the hearts and taste buds of Italians in the same way it has in many other countries? Is it because Italians are particularly loyal to their traditional coffee culture and cafes, or are there other factors at play that have hindered Starbucks' success in Italy? What specific challenges has the company faced in trying to establish itself in this market, and how have they attempted to overcome these obstacles?