I'm another millennial that doesn't like them. I type pretty fast, around 100 WPM, so outside environments where I can't type (e.g. while driving), I just never saw the appeal. Typing has a way of helping me shape my thoughts precisely that I couldn't replicate with first thinking about what I want to say, and then saying it precisely.

But I can appreciate that sitting down in front of a keyboard and going at it with low typing speed seems unnatural and frustrating for probably the majority of people. To me, in front of a keyboard is a fairly natural state. Somebody growing up 15 years before (got by without PCs in their early years) or after me (got by with a smartphone) probably doesn't find it as natural.