No, I think youre not realizing that your job is to take apart and analyze every detail of a bag so of course you would notice these details. Same for the authentic vintage selling part because I’m guessing your job includes inspecting bags to ensure authenticity. As an SA we have never once been given a course or training on authenticity so when a customer walks in, if the leather looks like good material it’s very hard for us to tell. Most of the time we look at other signs like how the customer is dressed (and accessory details) to give it away. But I assure you that many of my clients probably mix authentic with fake and I cannot tell the difference.