I agree, and I propose a second reason: it is too easy (for my dumb self, at least) to not realize the seat is up, try to sit down, and go for an unexpected swim
The great thing about this is that “a” can be pronounced as either long or short a. At least, that’s how it’s used where I live, I’m not sure if that’s actually “correct.”
Man, I love science people. Like, are you guys aware of how cool you are? I love being around people who talk about awesome shit like this, even tho I don’t understand most of it. Keep being you o7