Yes it's very imporant especially if the employer works a lot with peaple it's very important to found out how the person reacts to diffriend situationsI know when I worked at a call center I had to do specific training. like work place rules, how to interact with co-workers and what not to do etc.
These were like little video courses where we had to go over sexual assault in the work place, bosses being bad, work relationships, racism and so on.
Did you ever have to watch these guides when you worked a new job?