I would say the number one that I have seen is friends of mine who are in serious, committed relationships and very much want to do what I've been fortunate enough to do, which is to move in with their significant other or take the next step of an engagement, but they are unable to do so. That is because, right now, the only housing they can afford is a seven-person house just off campus, where rent is in the hundreds of dollars, rather than being four figures.
I would say that is probably the example I've seen reoccurring the most that I would point to most directly. Some of what I mentioned in my opening.... Other people my age, younger or older, seem to be putting their lives outside of research on hold, because research is such a major step in their career. I don't think it's sustainable for us to be asking them to do so.