The various examples of how to learn and remember scales, notes of each scale and etc. is something I feel should be mandatory in all school, public or private, music programs. As I have stated before, when I played horn in jr-high school, eons ago, the band director only taught how to play notes, both pitch and duration. I had never heard of music theory until I began taking private lessons from the third guitar instructor In my growing list of instructors. And at times it felt like being stuck in a revolving door.
The idea of relating notes to keys on piano works well, that is if you have or have ever had a piano. What about those who have not had that experience. We have to remember that each fret, either direction, is one half of a step or tone as
@ChrisGSP points out. So then the question is are all scales derived from W-W-H-W-W-W-H? Or does the formula, pattern or whatever you want to call it, change with each scale?
Then there are the modes. Each key (tonic) has 7 modes. And the formula for modes is like this:
The point I am trying to make is that if we had all been exposed to and impressed with the importance of scales and degrees at a very early age or starting point in the journey of learning, things would be more simple for us older learners of the fine art of playing guitar. Just my $0.02...