Personally, my problem was always that math concepts were never presented in a way that actually made sense in the “real world.”
I was taught that complex numbers were real numbers with imaginary parts that had something to do with the square root of -1. Yeah, I get it, but… why?
Fast forward a few decades and I’m writing code that processes a digitized waveform. Now it makes sense. Math isn’t hard when you have a frame of reference. Learning math concepts solely for the sake of learning them is very hard.
I think most meters have wireless connectivity now, too. I’ve never once had someone physically check my meter.