In telling me the different types of 'sort of plain' dress in your meeting you have reminded me that even the Quakers here are after all living in Bloomington, a peculiarly liberal college town.
No one on the street here has ever seemed to be bothered by what I wear, other than the occasional person stopping me to say "I like your dress, where did you get it?"
Our town had the usual skinny girls in leggings and tiny t- shirts here and itty bitty sun dresses. We have young men in low-hanging pants, but we also have a fair collection of business suits, jeans of every imaginable style, women in veils of all types and men in kilts.
Perhaps if I get brave enough to try Meeting for Worship I won't raise too many eyebrows?

My father used to talk to me about the kind of image we project. We are the only creatures on the planet who can choose how we look to each other, and who evaluate each other based on our appearance.
Because of that, all clothing is a form of costume. No matter what we wear it's not what we "are", it's how we are choosing to present ourselves.
I think this gives us a great opportunity.

Opportunity for what? I'm still working on figuring that out.
To change ourselves, become more humble, become less obsessive, less greedy?
To change the world?

I started fads in high school. I was an outsider, not popular and not interested in being popular, but I was watched. If I did something, like sew bells on the knees of my bell-bottoms, within a few days other people would be doing the same. Humans are very imitative creatures.

I think with more people taking up plain dress we can send a subtle message to the world around us, a message that our clothes don't have to be made far, far away, they don't have to be expensive, they don't have to show off our riches> We don't need new clothes weekly, we don't need to have full walk-in closets.
We can live with less, be happy with less, serve the world with less.