I don't think you need to have lessons to develop your own style. I've never taken lessons, just learned on my own, and I know I have a distinct style.
Most everyone who picks up a guitar, goes through the Metallica phase, if they're into that kind of music. They're fun songs to jam with friends too. But dissecting other players styles help you come up with your own ideas.
Sure, there are some people that would be better off with lessons, as mentioned earlier, but that doesn't relate to everyone.
Sometimes I hit notes only dogs can hear.
