What necessity drove the development of comprehensive, standardized size charts for clothing production?

Answer

The need to produce thousands of identical items to sell to the general public off-the-rack.

Before mass production, clothing was bespoke; tailors made items using measurements unique to the individual client. However, once factories could produce hundreds of identical shirts rapidly, they required a system to manufacture items for general sale rather than custom orders. Producing garments for an unknown public demanded predefined measurements, necessitating the collection of extensive anthropometric data. This data was used to create the grading systems and standardized size charts essential for operating on a mass scale, a structure that would have been far less critical if the market remained dominated by custom work.

What necessity drove the development of comprehensive, standardized size charts for clothing production?
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