I was a substitute (or "understudy" if you will) Broadway usher for several years. The thing that amazed me is that most of the people who are ushers couldn't give a hoot about the theater. A majority of them are older, nasty women who don't like new people coming in and bothering them. They've all been doing it for years and rarely ever actualy watch the show playing at their theater. There are some exceptions. There are younger people, too, but most of them are family members of the older ushers, and most of them are just as nasty and couldn't care. Then there were the few of us who were genuinely interested in the theater and were nice. We were the main ones the old ladies hated and tried to run out.
Being a sub usher was great. I got to work all the different theaters and see a LOT of amazing theater and get paid to be there. The best was when I got to see something I wouldn't have seen, normally, and LOVED it! I miss it VERY much.
<-- Tevye, FIDDLER ON THE ROOF, March 2018