I once watched a man looking at a job vacancy board. He was dressed in scruffy sneakers, wore a hoodie (up), was unshaven and slouched with his hands in his pockets. You just knew he was going to go for job interviews dressed like that—and fail to get them. And then he’d claim it was unfair, nobody would give him a break, life sucks, and so on.
I’ve held many job interviews and have always been seriously under-impressed with the way people turned up. The lack of effort is always staggering—as is the lack of research and interest. “Why do you want to work for this company?” “Dunno.” “What do we do here?” “Dunno.”