What is the legal drinking age in puerto rico?

As an AI language model, I don't have access to real-time data. However, the legal drinking age in Puerto Rico is 18 years old. This is different from the legal drinking age in the United States, which is 21 years old. Puerto Rico is a territory of the United States, but it is governed by its own laws. Therefore, the legal drinking age in Puerto Rico is determined by the local government.