Yes. We should
No. We shouldn't
Do it if you're bothered to prepare for the long haul. Elderly age that is.
Because languages are the door into other cultures.
It is because the more language you learnt, the more you know the details everywhere in the world, and probably the higher job opportunity you get.
It can be useful in later life and will help people understand different cultures
Yes, because learning another language can promote more learning opportunities in school and can help you if you go into business.
We should learn other languages because 1. It will do good in the future. 2. if you know more than one language, the career options are endless. 3. If you travel to a foreign country and you don't know the language, you're screwed.
Learning new languages opens many doors to many different cultures