I am in my middle age, started to learn guitar only 6 months ago. I do not have any career ambition in music instead it's more like a hobby. So far I have managed to learn quite a lot when it comes to guitar -chords, strumming patterns, scales, Intervals, Circle of Fifths, fret-board knowledge, octaves, unisons, Barre chords, CAGED system, basics of Key, finger-muscle building practice exercises etc. As you know 6 months is not enough for anyone to be an expert in this area. But I feel confident that I know a lot of music theory now but my playing skills are still at the beginner's level
Coming to the crux of this post, I have been doing research on the necessity to learn the scales. In fact I am reasonably comfortable with practicing scales now (all the 7 positions up and down the neck). Everyone seems to say master the scales as much as possible but as I try to practice them I see no obvious benefits in learning them. Mind you, as I said I have no plans of writing/creating my own music, instead my interest is only on learning a few songs which I can hopefully play at events in the future.
So my hypothetical question is this - If I were to learn let's say for example Nothing Else Matters by Metallica, how exactly is the knowledge of scales going to help me here? Before I started to learn the scales, I learnt to play a few other songs such as Romeo and Juliet by The Killers, Comfortably Numb and a few others. It's not at the expert level, nevertheless I would like to think it's not too bad for someone who touched the guitar barely 6 months ago. So far I was learning to play melody by memorising all the notes so I would like to know if scales help at all here?
This question I am asking in this post is only to help me get the idea of how exactly scales help me in this situation. Any thoughts? Thanks in advance.
Ps. By the way, a big thanks to all those gentle souls on YouTube, and forums such as this, for helping people like me learn music - a few years ago I would never even have imagined such a way to learn something was possible! May you be abundantly blessed!