How Old Is The Master In Demon Slayer

Okay, let's talk about something really important. Something that keeps me up at night. It's about Kagaya Ubuyashiki, a.k.a. The Master in Demon Slayer. How old is that guy?
The Official Story (and Why I Don't Buy It)
The internet tells me he was only 23 when he kicked the bucket. Twenty-three! Seriously? That's barely old enough to rent a car!
I’m not buying it. I'm just saying, some things don't add up.
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My (Slightly Unhinged) Theory
Here's my controversial opinion: Kagaya Ubuyashiki was way, way older than they let on. I'm talking Benjamin Button levels of "aging backward."
Hear me out! The man carries the weight of the world on his shoulders. He looks like he has seen centuries of battles, grief, and pain.
Could a twenty-three-year-old really possess that kind of wisdom? I think not.

Exhibit A: The Calmness
Have you ever seen a twenty-three-year-old that calm? I haven't. My twenty-three-year-old self was mostly stressed about student loans and where the next pizza was coming from.
The Master, even when facing certain death, is as chill as a cucumber in a freezer. That level of zen takes time to cultivate.
Exhibit B: The Prophecies
He can see the future! Like, really see it. They say it is because of the Ubuyashiki curse.

But maybe, just maybe, he's been around so long he's just seen it all before. Think of it like watching a really long movie - eventually, you start predicting the plot twists.
Exhibit C: The Respect He Commands
The Hashira, these powerful demon slayers, treat him with the utmost reverence. They hang on his every word. This is not your average workplace respect for the boss!
They respect him as if he were an ancient and wise old soul. You don't get that just by being technically in charge and having a terminal illness.

The Curse and the Cover-Up?
Okay, so maybe the "official" age is related to the curse. Perhaps the curse makes him age...differently. Or maybe, the family has been keeping the truth about his actual age a secret for generations!
Think of the possibilities! They could be worried about upsetting the demon slayers. Maybe they fear the reaction if people knew their leader was practically immortal (or was immortal and now is really old but still young looking).
My Unpopular Conclusion
Look, I know I'm probably wrong. The anime/manga probably states clearly that he is 23.

But a small part of me will always believe that Kagaya Ubuyashiki is secretly a very, very old man in disguise.
And honestly? I kind of like that theory better.
Don't @ me.
