Why has it become so difficult nowadays to find modest, non-revealing, and practical everyday clothing?

I went to five different stores looking for a simple and elegant dress, but almost every style I found was either too short or overly revealing. I'm not even going to mention the fabric quality. Why has it become so difficult to find clothing that is well-made, practical, and suitable for everyday wear?

Why has it become so difficult nowadays to find modest, non-revealing, and practical everyday clothing?
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