I think your response is "spot on" .. laugh..
The real issue has to do with the heart .. and the seriousness we take being "in the world not of the world".
I must say tho I find it a little annoying when people harp on dress. Yes - it can go too far EITHER direction.
I went to a Christian High School - as well as a Christian university that had extrememly strict dress codes for men and women. Truly they were not that difficult to follow - and I always managed to looked reasonably "normal".
I will tell you a story tho'.... I remember when the style of shoes were "Candies"... those high heeled shoes with just a strap across the toes to hold them on. They were quite the rage on campus... I NEVER understood it. They were shoes that off campus truly had a sleazy connotation... at least among older teens young adults in those days. I never did understand the appeal - but that sort of defined "being in the world - but not of it" for me when I refused to wear them.
So .. it doesn't matter WHERE you are - a homeschool convention - a Christian university - or a state school. Your dress PROBABLY will be a reflection of your heart... as your whole appearance is.
That is something I've tried to instill in my sons... THANKFULLY I don't have daughters to deal with ... I think I'd go mad trying to find reasonable clothes for her today.
I love it!!! I remember those things very well.