Fashion explainer: Why does the style industry need so many seasons?

The fashion calendar traditionally cycles through different collections designed for a specific season. Photo composite (from left): Kate Spade, Chanel, Hugo Boss, Gucci, Elie Saab

Designers around the world are calling for fashion to go seasonless. They now question the need for a hectic calendar of back-to-back fashion presentations.

The question is, why does the fashion industry need so many seasons? What do they mean?