Everyone develops skills differently. When it comes to learning guitar, some people are driven to be self-taught while others need a private teacher for some accountability.
When I picked up the guitar in 2002, I used Ultimate Guitar, ChordFind.com, a physical chord chart, and a CD player with my favorite songs on it. I never hired a teacher and didn’t go to school for guitar.
My point is, if you really want to learn guitar, you’ll teach yourself using tools from the internet, like a guitar learning app. And today, there are so many more helpful tools for beginner guitarists than I had. It’s the easiest time in history to learn guitar.