"I'd love to be able to play the guitar like you, where do I start?" Well, about 30 years ago. And I'm still a long way from being satisfied. Grrr & humphf.
There is no doubt the kids pick up new things faster than us grown ups, including the guitar, but it's not a lost cause. To adult newbie guitarists looking for advice on how to play the guitar I say "learn how to sing." Huh?
It's about engaging an audience. People like to hear what they already know. Okay, this precludes any new material from ever entering the greater collective, but let's leave that out of the equation for now ;)
If you can play a three chord song and sing in tune, you'll get an audience. Even if you keep that audience to your mate, your dog, or the bedpost, you'll get an audience. If you can play the theme riff to "smoke on the water", you won't get an audience, in fact, you might get a smack on the back of the head, and you'll deserve it...
If you can sing, then playing & singing a 3 chord song is about as hard as learning the theme riff to "smoke on the water." I don't need to remind you which I consider more valuable.
So, get a guitar, learn how to strum some chords, once you know three chords, you now have at your disposal approximately 1 million songs you can play...learn how to sing a few!
Most importantly, learn how to play the whole song, from go to whoa. And play it from go to whoa everytime you play it. The scourge of the guitar world is half-song playing guitarists ;)