How do you unlock or switch to "Princess Mode"?

It does take time. I played it a lot and in about 4 days I got Princess mode. You need to get to world 4 to unlock it, and then it gives a mini-tutorial on howhat to switch it. Also, the rears are more pretty and valuable, so you make like Princess Mode more.

To the princess level can take time. First you need to complete a certain number of meeting quests and then you can go on to the princess level's. Princess levels can be completed after you complete a maiden level .

Go to "Start Journey," find the pink circle that says "Maiden" and select it. To the left should pop a blue circle that says "Princess" with a tiny crown above it, and if you select that circle you'll get to Princess mode.