[Howard Klepper]

First off, you are numbering the strings wrong, which will confuse people. That fat string closest to your face is number 6; the skinniest one furthest from your face is called the first string. Kind of arbitrary, but that is the convention.

Second, pretty much nobody plays steel string guitar using what this guy calls "classical" fingering.

Third, while many people do use what he calls "practical" fingering, it's a bad idea to change hand positions in the middle of a scale--going from second position to first position to get the C note on the B (2nd) string--and it's unnecessary, because you already have that C right under your pinky on the G (3rd) string. Dropping down a position to get that C note is just wasted movement. There are situations where you will want to stretch an index finger or pinky a fret away from where it has been, but that should be done by stretching with the finger--not by moving the whole hand. And don't worry about those stretches now--they come a lot later in your playing.

Fourth, this teacher is missing out on the chance to teach you a really useful bit of information, which Vindibona pointed out--playing a scale that is moveable because it uses no open strings. With your hand in 2nd position you have all the notes of the G Major scale right under your fingers if you use your pinky instead of open strings to get the same note as the open string (except where you use the ring finger on the G (3rd) string to play B, which the YouTube guy already has you doing). Practice without open strings and now you can play the major scale in every key! You do this by moving the same fingering pattern up or down the neck.