Costco Wholesale interview questions

The managers read off of a sheet and asked some questions that were relevant and others that were not. (e.g., "Have you ever sought confidential information from your manager?"). The managers ended up hiring me. However, at the orientation, all of the other people they hired (20+ people) were MUCH older than I was. I felt a bit disregarded by the managers during the interview and I think they were more interested in hiring someone older than me.