^Chloegirl, that experience sounds like one I read in a book... I forgot what it's called now, but it's about this Australian journalist who moves to Paris after marrying a Parisian man (whirlwind wedding). Anyway, she mentions that one day she goes down to the corner bakery in her PJ/sweats as she would do back home, and when her husband found out, he was horrified! His reasoning was something along the lines of "it's not nice". She asked "why wasnt it nice? What was wrong?" And he says "it's not nice for the people who have to look at you." Essentially, you dress for others there as well as yourself. The woman couldnt fathom that idea, but I guess it explains why you generally dont find locals dressed in sweats and ratty PJs on the street, even to walk just a block.
She also mentions that her lack of self-control is a trait frowned upon by most French. For a while, she was unemployed, so when she was bored, she'd eat chocolates (a particular brand that she loved). Anyway, sometimes she'd eat half the box... out of boredom and that idea of "you can never have enough of a good thing". Her husband, again, was entirely horrified and frustrated at her lack of self-control. His reasoning was that you eat something when you want it... but if you indulge, you really eat well, but in small quantities. So, no low-fat chocolate.... you eat really rich, dark chocolate, but just a small square of it... not an entire box.
I think it's funny because it really does relate to what we're talking about her... they show such self-restraint... in their manner of dressing (where they refuse to succumb to trends) and well as food and life in general.