1. They will be exposed to Qwerty on devices where touch-typing is meaningless, such as smartphones and tablets.
I'm not sure having a keyboard layout completely interalized is ever really meaningless. For example, I typed this entire reply on my phone without looking at the keyboard once, based solely on knowledge of the positions of the different keys in relation to one another. Furthermore, even if I had been looking at the keyboard, having memorized the locations of everything in some part of my mind would definitely make it faster to type than if I had no idea where anything was. Besides, if someone were most familiar with a non-Qwerty layout, why wouldn't they just set their phone to that?
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I'm not sure having a keyboard layout completely interalized is ever really meaningless. For example, I typed this entire reply on my phone without looking at the keyboard once, based solely on knowledge of the positions of the different keys in relation to one another. Furthermore, even if I had been looking at the keyboard, having memorized the locations of everything in some part of my mind would definitely make it faster to type than if I had no idea where anything was. Besides, if someone were most familiar with a non-Qwerty layout, why wouldn't they just set their phone to that?