Proddy

From what I've read, adult age is like... 125? Something like that. Has the lore been revamped or something?

Adult age is 50, at the earliest stage. My suggestion would be picking an age most accurate to your character's apparent wisdom and conduct. I've seen "1000" year old elves act with less forethought than a halfling picking what dish to eat first.

Also note, in case you don't know/misunderstood what they mean by "adult at 50", you still grow normally like a human would. At 18 you're physically mature, or 20, or whatever it is for people IRL idk xD Societally, you have to wait till 50...

I'm tried of seeing 25 year old elves act like actual children, though...They're considered children, but they shouldn't be stupid about it.