Theory: Daisy Hills and Daisy Circuit's Location

Abstract
Daisy Hills is in the Chai Kingdom and Daisy Circuit is in the Muda Kingdom.

Arguments

 * Argument 1: Both race courses are Daisy-themed, with Daisy being the ruler of Sarasaland (which is an empire that contains both the Chai and Muda Kingdoms)


 * Argument 2: Daisy Circuit is on the coast and has rock formations that are identical to the iconic rock formations of the Muda Kingdom.


 * Argument 3: Daisy Hills is set in a very grassy and mountainous region, with small lakes and pools of water, fitting the grassy Chai Kingdom with pools of water appearing in 4-2 and mountains appearing in the backgrounds of the Chai Kingdom stages.