why do bạn think princess đào is the main princess?

Because she is pretty and girly and better than daisy

because Nintendo made her before giống cúc, daisy hoặc rosalina and plus she the princess of the nấm kingdom :)

because she has mario who rescues her about each day.

Because Shigeru Miyamoto created Princess đào to be a part of the main cast.

giống cúc, daisy doesn't get the same luxury because Super Mario Land was made without Miyamoto's knowledge. (Or so I was told.)