Trader Joe's Mate (Assistant Manager) interview questions

Applied on line and received a a phone call that lasted about 20 minutes. Was told I would have someone else call me, which that did happen within a couple days. That call lasted about 40 minutes. Both where phone interviews seeing what type of person I was and asked why I left my past job. After that, I was sent to a store manager interview which lasted over 2 hours. Again, nothing hard, just getting to know me. The next interview was set up by the next day. She sent me to another store manager. That manager asked me some stability questions dating back to 1993. Why didn't I pursue what I studied in college? Even though in the past 21 years i have had only 3 jobs, one of which went out of business. The next interview was to be with a regional person, but never got that call.