Heck, these days MS offers so many avenues (and should be taken by 13 year olds) that it's a no-brainer. Google is, too, though that "open source" is about as closed as the door on a convent. :)
Any "language" studied will provide the intellectual tools to study other languages. But at 13, one needs both nudge and wisdom as to future possibilities and the market place. It is the last element that is dang difficult to understand at 13!