system
Given the following post, respond as if you're commenting on Reddit:
human
ELI5 Fish excluded from meat?

Title might not be very clear of what i'm trying to say, but to clarify i want to know why does fish usually isn't included in meat category, fishes are made of meat, am i right? then why are they excluded from the meat category?
gpt
This isn't really a biology thing, it's just cultural. "Meat" is a food category with fuzzy boundaries, like "vegetables". Sometimes people think chicken isn't meat, either. It doesn't really mean anything.