Aren't almost all students learning to read from the start if they use classical methods?
I was taught this way as a child and I started reading at once when I restarted as an adult. It might have been better to do it your way as a kid, since many of my problems with the piano lessons were related to my reading problems, later discovered to be a side effect of my dyscalculia. I still suffer from them despite years of reading practice. I recently started another instrument and I am trying to focus more on playing by ear and less on the scores and it is really refreshing.
I had a pretty good reply to your last question, but I accidentally did something with my browser and don't know if I can find it in its cache.
The short of it is, in my experience, since that's what you're asking, I learned to read notes and durations in the G and F clefs as part of a standard curriculum before I played any instrument. I don't know what years those were: in the US educational system, maybe first or second grade. Not a fancy school, just a regular publicly-funded elementary school in the sticks. Not any special band class or anything, just something everyone was taught. You know, teacher at the front of a small group with a big bunch of staves and amusing representations of notes and their temporal values. No theory, or anything, just how to read music in the big two clefs.
It might have been better to do it your way as a kid, since many of my problems with the piano lessons were related to my reading problems, later discovered to be a side effect of my dyscalculia.
Do you mean dyslexia? Dyscalculia affects your ability to deal with numbers iirc. Does it affect reading sheet music as well?