I had an interview that required that I was dressed formal, so I suit up!
If an interview requires something like that from you, is expected that the other party complies too, here it wasn’t the case. There were 3 interviewers, the main one and 2 invited. Main one had a tie, shirt and a sweater; other one were ladies that were dressed business casual…they were invited and probably the not let known about the dress code by the main one,so I can live with that.
Talking about giving a bad first impression right from the start, a leader should never request something (s)he can’t deliver.