system
Given the following post, respond as if you're commenting on Reddit:
human
ELI5: Why do cats feel the need to sit or nestle into things like boxes, bags or small enclosed spaces?

I've always wondered why they feel the NEED to sit in or under things. Halp?
gpt
For much the same reason a child will use blankets to cover themselves up even if the temperature doesn't call for it, it grants a feeling of safety and concealment. Cats are also stalking and ambush predators so any place they can hide is probably instinctivly a 'good' place.