system
Given the following post, respond as if you're commenting on Reddit:
human
ELI5: Why is there such a significant home advantage in sport?

Bonus question: is there as much of an advantage as it seems?
gpt
It's like shitting at home in your bathroom. You know where the handle is, you know where the extra TP is, you know where the plunger is in case shit gets hairy. That's called home field advantage because you are used to your surroundings: sun, wind, grass, refs, fans, noise are all familiar. As a result you shit much better.