It's obvious to see why she would feel that way, but it's a vibrant industry and it'll bounce back, so my advice would be stick at it, or she's wasted the other years too, not just this last one.
My lad (30) was very down in March, as his company (recruiters of IT people) basically shut down, he runs the Manchester branch and was doing so well, but overnight it was a complete shutdown, he was understandably very worried. I told him then, that whilst there would be issues for a few weeks, it'd have to come back, and within a few weeks it had, not at the level before initially, but once things calmed down it struggled back into life, and now seems to be doing OK again, certainly he seems to have enough work.