So one of my questions at my interview was if we had a dress code. My faculty interviewer is a huge researcher here and she straight up laughed and said, "I teach 8 ams, and people come in PJs. We understand you're here most days till between 5 and 7."
As a club president, I've communicated and worked with department of ag, clinicians from outside clinics, clinicians inside our clinic, and more. They've all, literally 100% of them, have expressed how they were glad for us that we don't have to worry about it and that they're low key jealous they had to be business casual while in school.
Plenty of people at my school have done awesome summer internships through connections they made via lunch lectures and clubs. All while wearing sweats and leggings. It's not nearly as big of a deal that you think it is, because all of these people have been in our shoes and know exactly how awesome it is to not have a dress code.
You do you, boo. Dress however you're comfortable and confident. But don't think that us comfy, lazy sons of guns are doing worse than you for that fact. Cause we aren't.