I speak 9 languages by now, and it helps a lot to get to the customers to speak their language. English-only communication fails to sell out of the safe borders

I speak 9 languages by now, and it helps a lot to get to the customers to speak their language. English-only communication fails to sell out of the safe borders of the English speaking nations. Esperanto is just used as a communication tool, just like we use better or worse programming languages to get things done.