Which famous product design decision was initially criticized as 'counterintuitive' but later became the industry standard that transformed user experience?

Throughout history, certain product design innovations have transformed industries and redefined consumer experiences. While some designs were immediately recognized for their brilliance, others took time to gain appreciation. This trivia question explores a landmark product design decision that initially faced criticism but ultimately revolutionized an entire industry and influenced countless future products.

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Apple's removal of the physical keyboard on the original iPhone in favor of a touchscreen interface
Sony's inclusion of a built-in rechargeable battery in the original Walkman
Nintendo's introduction of motion controls with the Wii console
Amazon's decision to sell Kindle e-readers at near-cost while profiting from e-book sales