I think the loss of several dozen additional children per year, across society, is far outweighed by the extraordinary benefit to the other 99.999%.
And what benefit is that? Apparently, I benefited from dozens of children being lost per year and I didn't even know about it! Thanks, lost children!
I'm sure their parents feel a little differently though and wish their kids had a GPS tracker on them.
Lots of my friends from the Mid-West and South have lots of stories like yours, about being in the woods, away from the rest of the world and being alone while camping or whatever. While that's all well and good, and you could go start a reality show where you survive the wilderness by snatching fish from the river using only your hands, most of society - me included - grew up or live most of their lives in larger urban areas where they need to depend on other people for their survival. There's nothing wrong with that. As a matter of fact, humans have created everything we have today because we work better in groups and naturally rely on each other.
The only reason I'd say would benefit people from having their technology taken away and left in the woods to fend for themselves is that they'll learn how linked they are to each other and won't take all of the hard work that people have put into creating the technology and a functional society for granted.
It built a real sense of self-control and the confidence to do things on my own.
I have self-control and confidence to do things on my own as well, and I didn't have to get lost in the woods to do so, but hey, different strokes...