Interesting article. I am a language lover too, teaching English and speaking 4 others.
I second Remarkl's comment, though. I would be tempted to ask why you learnt certain languages because I am interested in what drew you to them, there is probably an interesting story, you aren't just learning them to go on holiday. Or maybe you are?
For many people, to study a foreign language requires enormous effort and commitment so many would be less likely to do it unless the language was essential to your future.