DE Blade advice for a newbie..

I would say yes, to some degree. At the end of the day, you're running a surgically-sharp razor across your face repeatedly. Any untoward pressure would cause the micro-abraisions you've described (cuts/nicks/weepers) so it's natural that your body tries to counter that - think callouses with hands/feet. It won't be to the same degree as callouses, obviously, but I think there's some weight in the suggestion that skin 'toughens up', so to speak.

I found the same, when starting I struggled to get good shaves without irritation but turned a corner. Similarly, if I go without for longer than a few days, I can almost guarantee that I'll feel the shave more, usually as a tingle proceeding the shave!
 
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