I don’t think it takes any special talent to learn multiple languages. Some people may do better than others, but everyone can do it. Some may pronounce better, some may have a larger vocabulary, different people have different interests, but everyone is capable of doing it. It’s an extremely rewarding thing to do.
I had lunch earlier this week with a college professor who is head of the Asian language department in a large university here in Vancouver. He told me that a majority of students who enrol in Asian languages quit after the first year. I was surprised to hear that.