There is a big difference to going out with one's coworkers who are PEERS and going out with one's students. One has power over one's students that one doesn't have over one's peers. There are concerns about fairness, sexual harrassment, and so on.
I might be crazy, but it doesn't seem weird at all for W to want to go out with the gang for a night on the town. Only ONE GUY was 21. There were also people in their later 20s, 30s etc...
