Dee -- I totally get that you're coming at the question from a social perspective. My sense is that, when people dress down, there's often a pragmatic or environmental reason. I dress up when I can (usually this means an all-day event, something happening on a day off, or something I was able to plan for in advance). But most of the time, if I go out, it's after a day of work and I'm going to be wearing my "outdoor educator" clothes. There's no way around it; my house is in the opposite direction from most of my area's social/cultural activities, so it's impractical to go home to dress up, do hair/makeup, etc. I'm sure many folks are in a similar position. For special occasions like weddings or holiday parties, I'll absolutely meet the dress code and then some, but for a Friday night dinner/concert/whatever, I figure it's implicitly "come as you are". I'm rarely the most casual person in the room, and rarely the most dressed up. I also don't have any strong urge to compare myself to others or judge people by what they wear. It doesn't bother me one bit if my friends are in their yoga clothes and I'm wearing a cute dress (or vice versa). Their day was different from mine, no big deal.