Here are some reasons why speaking English is a really great idea:

Travel:
English is the language of travel, making it easier to communicate with people from different countries and cultures.

Personal growth:
Studying English can help you develop your critical thinking, problem-solving, and communication skills.

Networking:
English is the language of international networking, making it easier to connect with people from different countries and cultures.

Academic research:
English is the language of academic research, with many scientific and academic journals published in English.

The internet:
English is the language of the internet, with the majority of websites and online content written in English.