[noirbot]

I mean, if they said not to wear something formal, that doesn't really seem like bias as much as just not following instructions. If I showed up to an interview where they said to wear a suit and I was in jeans and a polo, I'd expect to get turned down too.

[mathgeek]

A button up shirt without a jacket, at the time, was business casual at most. What they wanted was a t-shirt and jeans. Even Walmart, when I’d worked as a teen, expected a collar and appreciated a sports coat for interviewing. Different times for sure.

[noirbot]

Sure, but t-shirt and jeans is also what everyone working at an Apple Store wears. It'd be one thing if they didn't say what to wear - then I'd totally understand going a bit above, but if they specifically put in "not formal", then it seems reasonable to assume they mean "match the uniform generally".

[kevin_thibedeau]

A button up shirt isn't formal.

[noirbot]

I'd mostly agree, but with them specifically calling out "not anything formal" as part of the expectations for interview attire wouldn't be the time I'd want to be riding the line of "is this too close to formal". This isn't a job at a tailor or stylist. You're not being tested on your understanding of the roles of various garments in different levels of fashion over time.

Presumably OP had seen/visited an Apple Store before and knew what employees wore there, so it's not a mystery what the uniform is, and therefore what is probably meant by "don't wear anything formal". It's not some kind of gotcha.