I don't know about in general, but in my environment people in the 25-40 range are the most common to work from home, and the most common to majorly profit from it.

Like the benefits you can get with working from home if you e.g. have a partner and children are much much larger in practice then when you are a single student. Through also the challenges you have to overcome to make working from home viable. With the main challenge being proper working from home needing more space (in general) at home which with high apartment prices isn't always easy.