Even Roger doesn't wear it right half the time

Ok, hear me out.

Roger found the One Piece and became the Pirate King, stay with me now.

Roger is basically the only character in the series who uses coat sleeves

In the flashbacks before he became the Pirate King, he wore his jacket like anyone else in One Piece, on his shoulders. So...

The One Piece is learning how to wear a coat right.

Except for rayleigh, he didn't figure out how to wear his coat properly

Rayleigh was never the Pirate King, though.

Good point

Hear me out, Doflamingo and Smoker.... the joke is funny lmao

What if all the other it is just a cape

capes don't have sleeves

Good point