I agree with this.. its true that some Americans tend to be a bit more casual than some would like
ie) one of my old French professors actually mentioned this during one of her lectures..
she said that students would never wear open-toe shoes to university lectures in France
but honestly..we're students who are attending school to learn.
learning and accumulating the most information I can in the short time I spend at school is my priority..
when it comes to clothes.. it's all about being comfortable with how you look i think
i don't think there's a problem with rolling out the sweats once in a while.. for lectures, however, I usually wear black leggings and a loose top. equally as comfortable for me. save those vs sweats for the library haha
and I usually don't put on makeup during the weekdays.. at most, maybe some light powder and lip gloss
weekends are a different story though lol