Have been watching primitive tech for a while. But I'm always wondering if he slept in those shelters or went back to his RV (I suppose?) during the night. Australia is famous of crazy wild insects and I don't see any signs of protection in the huts.
My understanding from his various posts online (and website [1]) is that he owns and lives near the land where the filming takes place. In Far North Queensland these sorts of areas would not be difficult to come across, not even far from a major town.
He probably just walks or (more likely) drives home each day.
"Also It should be noted that I don’t live in the wild but just practice this as a hobby. I live in a modern house and eat modern food. I just like to see how people in ancient times built and made things."
Insect-wise, Ross River Virus is a problem in that part of the country. It's spread by mosquito. You wouldn't catch me outside at night up there in summer, at least not without protection.
Well, somehow aboriginal people have survived without sealing up in their RVs. Also, as far as I know most of the Australian wildlife won’t attack humans unless feel threatened.
There are captions on the video explaining some of it. This wall is only temporary storage of the bricks while they dry. The roof keeps them (somewhat) protected from rain until they're ready to be fired into stronger bricks.