Women are destined to look elegant in form-fitting dresses. Dresses are supposed to flow with each movement and accentuate a woman's natural feminine beauty. Womens narrow dress shoes add grace to an already graceful formal ensemble.
Dress shoes in general add a certain flair to formal wear. Womens narrow dress shoes are just one of the many kinds of shoes that can be paired up with an elegant evening gown, or a chic cocktail dress. Wide dress shoes are also available for women with broader feet - given the endless options for a female shopper looking for the right footwear, one need not fear that the size of her feet will hamper her from achieving any "look" she wants.
When you have narrow feet, say AA or AAA size, a lot of the more popular styles out in the market may frustrate you. But don't fret! Just because those shapely high-heels you saw on the cover of a certain women's magazine happens to be too wide for you, you can always pick out other styles of high-heeled shoes that will better suit your size and purposes. The important thing is to take your time shopping. Try out all the available styles and see which one would provide the best fit.
One's prime concern when picking out a pair of formal shoes ought to be comfort. Say you may not be a real social butterfly, and you tend to shy away from most formal gatherings, excepting the ones that are really, really necessary to attend (such as your own wedding!), you still need to pick out shoes that are not just pretty, but also comfortable. If you really want to make the affair memorable and enjoy it to the fullest, you won't sacrifice comfort for anything.
If you have narrow feet, your main concern is probably to find a good pair of shoes that looks good and at the same time doesn't threaten to slide off at every step! On the other hand, if you have wide feet, you should not try to squeeze into narrower shoes just because those slender-footed shoes models make them look so irresistible. The point of wearing snappy dress shoes is to look gorgeous, and can you really do that while trying hard not to wince while going around the room talking to people?
Besides, even if you ARE a social butterfly, there's no rule that says you aren't entitled to comfortable formal wear, such as womens narrow dress shoes. It's not true that the worse-fitting a shoe is, the better it looks. If you REALLY want to look good in a dress, you'll pick out shoes that are right for the size of your feet.