In the last job I applied for they dismissed a candidate because he showed up in tshirt and jeans. In a previous job I applied for (electricians helper) they w

In the last job I applied for they dismissed a candidate because he showed up in tshirt and jeans. In a previous job I applied for (electricians helper) they wouldn't hire you if you applied in a suit. I believe in both jobs business casual was fine. It really depends on the interviewers though. If I were interviewing you and you weren't wearing business casual I might ask why, but that's me. The reason I would ask why is it will give me insight to your personality, and circumstances. You might be having a tough break, you might enjoy wearing suits, or you might think appearances don't matter.