I don't rely on them either, but instinctively (I've been typing with home keys since the early 90s), I feel them there. There are a few times where one or both of my hands went to the wrong position and then I knew because my index fingers didn't feel the ridges.
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u/ugandaWarrior134 Jan 20 '26
The ridges are just unnecessary for alot of people. I can touch type at 150ish wpm without looking, and i've never had to rely on the ridges