My mate is a steward who does it part time between uni and working elsewhere, he pointed a few things out to me a while ago.
The wage was pathetic circa £6 an hour, the moral is poor. Treated like shit from employers and polis. Most of the stewards he worked with enjoyed banter with fans and kept heads down for a quiet shift, just trying to bolster their income to help pay bills.
He said he did encounter a few who where screwballs and bigots just up for a fight or get fans kicked out they didn't like the look of.