Hello Neutral Good, I'm Dad.
Way way back in AD&D days, alignments could be languages. It was always a strange idea: two characters from different continents, in a corner of the tavern, chatting in Chaotic Good. Back then yeah, a character's could sort of introduce themselves with their alignment by speaking in that language and only being understood by others whi shared this alignment. Since it still takes up a language slot, it was a tactic almost never used, but it could happen. In every edition I've seen afterward, the system has just not supported it.
Unrelated story: I wrapped up a play-by-post game over the weekend. I ran a short module from the Cyberpunk Red game for three new players (new to that game). They were supposed to recovering some stolen military-grade weapons from a gang. These weapons included a neurotoxin, and the cyberpunks inadvertently exposed themsleves to it. I gave them a dice roll to survive above and beyond what the system grants the. Still, two of the three died, and the third pulled through by the narrowest of margins. It was darn near a full party kill.