Not really, I just was given one as a present. This is in australia. By hardcore… this is a relative term but 24h I had no food, barely any water, and ended up catching a bug from the water I had as I didn’t sterilize it properly.

It was soft core in the sense we were close to civilisation and no one was going to die.

The main takeaways is being prepared esp. how to source water (bring water, filters, spares, more spares, ways to start fire to boil water) and calling for help (no reason to not get a beacon). And how to treat snake bites (because they can kill) was drilled in.