system
Given the following post, respond as if you're commenting on Reddit:
human
ELI5:Why do ALL big-box stores like target, walmart... have over twice or three times the height needed in shopping space?
gpt
1. The air circulates much better and the experience is far comfier.

2. From a structural perspective a very large but "flat" store would be a very bad idea. Basically if each foot of girder + square foot of wall makes up 1 unit of strength, that means the ability to support the ceiling is directly proportional to the height of the building.

3. From a psychological aspect, a low ceiling makes shoppers feel very "caged in" like mice.