Understanding basic music to begin with is helpful, but even knowing a couple chords can get you started.

Typical guitar is tuned in the key of E

There are many videos out there they can teach you simple songs.

Maybe pick one or two of your favorite songs that are three chords or less.

If you have a chance to search online, maybe check out people like: Jimi Hendrix, Duane Allman, Jimmy Page, Mark Knopfler, Rik Emmett, Eddie Van Halen, Eric Clapton, Keith Richards, Kirk Hammett, Slash and David Gilmour.

Even learning one simple scale and spending an hour a week can get you playing.