Whenever you see an old film, even one made as little as ten years ago, you cannot help being struck by the appearance of the women taking part. Their hair-styles and make-up look dated their skirts look either too long or too short their general appearance is, in fact, slightly ludicrous. The men taking part in the film, on the other hand, are clearly recognizable. There is nothing about their appearance to suggest that they belong to an entirely different age. This illusion is created by changing fashions. Over the year, the great majority of men have successfully resisted all attempts to make them change their style. of dress. The same cannot be said for women. Each year a few so-called top designers in Paris or London lay down the law and women in the whole world over rush to obey. The decrees of the designers are unpredictable and dictatorial. This year, they decide in their arbitrary fashion: skirts will be short and waists will be high zips are in and buttons are out. Next year the law is reversed and far from taking exception, no one is even mildly surprised. If women are mercilessly exploited year after year, they have only themselves to blame. Because they shudder at the thought of being seen in public in clothes that are out of fashion, they are annually black-mailed by the designers and the big stores. Clothes, which have been worn, only a few times have to he discarded because of the dictates of fashion. When you come to think of it, only a woman is capable of standing in front of a wardrobe packed full of clothes and announcing sadly that she has nothing to wear. Changing fashions are nothing more than the deliberate creation of waste. Many women squander vast sums of money each year to replace clothes that have hardly been worn. Women, who cannot afford to discard clothing in this way, waste hours of their time altering the dresses they have. Hem-limes are taken up or let down waist-lines are taken in or let out neck-lines are lowered or raised, and so on. No one can claim that the fashion industry contributes anything really important to society. Fashion designers are rarely concerned with vital things like warmth, comfort and durability. They are only interested in outward appearance and they take advantage of the fact that women will put up with any amount of discomfort, providing they look right. There can hardly be a man who hasn't at some time in his life smiled at the sight of a woman shivering in a flimsy dress on a wintry day, or delicately picking her way through deep snow in dainty shoes. When comparing men and women in the matter of fashion, the conclusions to be drawn are obvious. Do the constantly changing fashions of women's clothes, one wonders, reflect basic qualities of fickleness and instability? Men are too sensible to let themselves be bullied by fashion designers. Do their unchanging styles of dress reflect basic qualities of stability and reliability? That is for you to decide. The main idea of this passage is ______.