Age matters. But first let me explain. It's easier for young children to learn a second language. Their brains are still developing, and I'll quote "After age 11, centers in the brain responsible for language acquisition stop growing rapidly and language acquisition becomes more difficult.". But adults have advantages too while learning new languages. It's easier for us to find language patterns and sometimes apply them in different languages. We are more aware of how to build sentences and some concepts are very similar in different languages. No way age should stop anyone from learning a different language. Just an example: my grandparents were emmigrants in their mid 20's/early 30's and they learned a whole different language and were fluent. If you want to learn a new language, go ahead!