It is also a great way to increase you future job opportunities! For example, here in Poland we have many young brothers and sisters that are quite proficient in English and the number of English speaking groups and congregations is increasing. We have a lot of foreigners moving here for economic reasons and most of them speak English (it is easier for a Pole to communicate in English with someone from China than bother to learn Chinese, although they do that too!)
At the same time we have a lot of Global companies outsourcing to Poland and you chances of finding employment go up considerably if you speak fairly fluent English. At the last DA for English I went to in July, there were lots of upscale BMW's and Volvo SUV's in the parking lot. Coincidence? I think not.