How does everyone feel about dynamic weight gain being noncanon?

I'm talking about the ability for the player to walk around and pick what size and shape they are at any given time and it's impact on the story (specifically the art)I've been running into issues with sprites and cutscenes where a character needs to be one size or shape, but the player may be a different size and shape, and making art for every possible size shape combo isn't realistic.Nothing would really change other than I add dialog to the game mentioning that the player overworld sprite is only for your own preference as a cosmetic skin and whatever art in the cutscene is actually how the character looks in the story at the minuet.