It's early, man!
By that I mean on a guitar, you have 11 notes between C to C, in one octave. All of your scales, arpeggios and chords will be some grouping of those notes. This changes with a microtonal guitar, but most people dont own one of those. You have a few octaves to choose from, but your "core building blocks" dont change.
So once you know how you can link between those notes, you can learn songs or make chord progressions far easier.
His question is should he learn chords or songs first. Im saying the actual notes on a guitar are limited - so learn how they interact, by way of a good teacher.