The real question is, how old is Thomas Game Docs. I'm actually 400.

In Mario & Luigi: Partners in Time, Baby Mario and Baby Luigi are able to toddle around (and use hammers and fireballs) (12 - 15 months old) while Peach is only capable of crawling (7 - 10 months old), which puts her at slightly younger than the Mario Bros. if you want to be hyper specific.

I like to imagine that each Mario game only takes place like a week apart lol

Mario is both middle-aged and 25, it's just that life expectancy in the Mushroom Kingdom is around the early 50s.

E. Gadd also corroborates this.

In Mario and Luigi: Partners in Time, E. Gadd moves from Thwomp Volcano to Boo Woods in the past - while Mario and Luigi are babies.

In Luigi's Mansion, he claims he's been studying the Boo Woods for twenty years. Intentional or not, the events in these two games line up perfectly, since this places the "past" segments in Partners in Time twenty years ago, making Mario and Luigi in their twenties.

Can't believe Mario has over 35 years of experience under his 25 years of life. Truly an inspiration.

Now I feel like I didn't achieve anything in my 26 years of life. I didn't saved any princesses or fought against giant turtles with spikes 😂.

Mario and Thomas sure have achieved a lot at 400yrs of age.

Mario & Luigi: Partners in Time actually came out before Yoshi's Island DS (about a year before). It would imply that Princess Peach is slightly younger than Mario and Luigi, since during the game, the baby brothers can walk, wield hammers, speak simple words and phrases (no full sentences though), while Peach cannot and is still in a stroller.

Oh, I see, Mario getting younger over time makes perfect sense. See, in the older Mario games, when he was an old man, he could only do pathetic jumps and nothing else. Nowadays, in games like Odyssey, he's a full on athlete, since he's gotten younger and is now able to do crazy moves like backflips or triple jumps. So Benjamin Button isn't alone with his case after all.

I can't believe I'm older than Mario
As a wise man once said: "Mamma mia."

That thumbnail is the absolute definition of priceless.

I'm almost as old as Mario, wtf.

I really don't think Nintendo is going to ever finalize an age for these characters. They are eternal characters, if they keep selling, they can exist forever without major changes in appearance. I've seen Mario's clothing become more and more realistic though. Like how you can see some stitching together on Mario's overalls, and since smash bros melee, Mario has been wearing Denim (Jeans) like clothing in some of his games. His mustache and hair in Mario Odyssey became far more detailed too. So while Mario will never age, he will become more detailed with each new console generation.

I've always liked the theory that 'Jumpman' was Mario's father. It would clear up several discrepancies with ages across the series, specifically concerning mario going from 'middle aged' to '24-25'.

Mario is forever roughly a 45 year old dude to me, lmao. It makes Mario's inherently goofy nature even funnier to me.

In Paper Mario: The Thousand-Year Door, one of the elderly NPCs (who is part of an elderly-people's club called the Silver Club, along with several others) says something along the lines of possibly seeing Mario in the club in another 20 years.

Mario’s not old he’s ancient

I imagined Mario to be 36-37, I can’t believe he’s that young

I was thinking early 30s, kind of surprised to see they actually stated his age at one point.