Anonymous wrote:I think the OP is asking about linguistics departments, which are usually more rigorous than learning a language for fulfilling core requirements.
With that said, it depends what your kid wants to do, such as general or applied, computational/machine learning, or cognitive science. There are avenues for any language in future linguistics research in grad school but not sure how less popular European languages work other than what PPs have said about majoring in a language, which seems very limiting without a second major/minor, unless you want to go the grad school route anyway.
It dont think any are