Forever 21 Visual Merchandiser interview questions

Saw an open call for a job fair for their store. When I arrived I was one of many who showed up for the open call. They had us stand in line in the hot sun and were to wait until it was our turn to be interviewed. I was dressed in a professional manor and was surprised to find most of the other candidates were in jeans???? When it was my turn to interview, I was sat at a table with another interviewee but we were being interviewed individually by our own interviewer. The questions were basic and the interview lasted only 5 minutes because they were trying to get through the line. This type of interview is hard because they cannot go into depth to see if you'd be a likely candidate for the position. I think the interviewers main concern was that I was unsure of my availability because I have another job. I told her that if I was to be hired for the Visual position I would quit my current job.