I know I'm probably getting WAY too ahead of myself here, but the lack of information being shared about the disappearance and the family itself make me so worried that this case may take an eerie resemblance to the disappearance of William Tyrell.
MOO.
Don't get me wrong - I know children of Gus' age have a very normal tendency to wander off, especially in environments where they're familiar or comfortable. And that in this case, due to its remote nature, it's probably just unnecessary for the public to know many details as it's highly unlikely that we could do anything to help find him.
I just hope it's as unfortunate and innocent as it seems and not something more tragic and sinister, like the WT disappearance appears (to some) to be. Again, MOO.
But in my opinion, if my child went missing, I wouldn't hesitate to consider all possibilities no matter how unlikely they seemed. I wouldn't jump to the conclusion that they'd definitely walked off into the wilderness even if that was the most rational or realistic scenario. Without knowing for certain what had happened, I wouldn't rule ANYTHING out and would be doing whatever it takes to bring my baby home.