If you consider that the more comfortable position to place your thumbs on the right side of a controller are at the edges (e.g. on a SNES controller it’s dpad-left and A) it makes sense that the A button should be on the right (i.e. the first button from the perspective of your right hand).
If you consider that the more comfortable position to place your thumbs on the right side of a controller are at the edges (e.g. on a SNES controller it’s dpad-left and A) it makes sense that the A button should be on the right (i.e. the first button from the perspective of your right hand).