Now my own 31 for 21 Post in response:Ok, this will be my 31 for 21 post today. Sofia is DEEPLY into the Princess Phase. She IS Elsa. She IS Rapunzel. She IS Tiana. She IS Ariel (yuch - foolish whiny teenager!). Would she care if there was a princess with Down syndrome?
Right now, she has no problem relating to any of these characters. Dark skin or light, long hair or short, legs or fins. It makes no difference to Sofia.
Would having a princess with Down syndrome force Sofia to ONLY relate to that princess? Would it limit her imagination?
Out in the real world, Sofia generally does not notice anything special about other people with Down syndrome. She does not "relate" to them any more than to anyone else.