It depends on when and where. I assume English is your native tongue, because if it wasn't you'd probably would be asking in your mother tongue in some other la

It depends on when and where. I assume English is your native tongue, because if it wasn't you'd probably would be asking in your mother tongue in some other language forum :D I think there are several reasons learning foreign language might be worth the hassle: 1) you are learning language of a place you are moving to. Suddenly you are the 'foreigner' and being able to speak with the local language is a advantage. 2) you are learning a language significant minority of your location. I assume speaking Spanish in the US can be useful. Or speaking $LANGUAGE of neghboring country if you are in a border region. In small-enough country almost anywhere can be considered a border region. 3) you want to impress you foreign friends/clients/colleagues/customers, understand them better. 4) you are studying some artefact from a different culture and want to enjoy the un-translated original. This applies to things from watching your favourite anime in Japanese to learning ancient Greek or Hebrew to read the Bible closer to its origin. You might find more. But if you don't have the time, or willpower, you can get a long way just by being reasonably humble and polite, in a level appropriate to the culture you are trying to interact with :) On the other hand, getting to good enough proficiency for the language to actually be useful beyond i.e. asking "Где почтамт?" really slowly, can be quite a hassle.