The majority of my camping since turning 18 has been solo.
But....
You gotta be careful.
I once went on a solo backpacking trip behind the Sawtooth mountains in Minnesota (along the north shore of Lake Superior) back in the late 80's. This was in the spring, and the snow was pretty much gone, but nevertheless I asked the DNR guys repeatedly if they thought the path was clear in the direction I was heading. They said, 'yes'.
Well, I got in behind those "mountains" and it was snow up to my crotch, and me with no snowshoes.
The worse part was when I decided to head up an old logging road. What I thought was solid ground covered by snow and ice turned out to be old, rotten split birch that was frozen just enough to hold my weight ... for about a mile. My foot finally broke through and I dropped up to my knee into icy water before hitting the bottom, and me with a 50 pound pack too. Jammed up my ankle pretty good in the process.
Managed to walk through the pain to the next possible camping spot, where I hung out for a couple of days icing my ankle. (Lots of snow around for that.

) Then I hobbled up the trail to a logging road (a solid one this time) that cut back to the highway. From there I managed to hitchhike back to a state park, called my girlfriend, and then hung out for another day waiting for her.
It was a busted trip, but honestly it could have gone a lot worse than it did.
Be real careful if you're going solo.