What, you’d  don’t do that?

“Why is the rainbow horse on the counter?” “She likes to be tall.”

This is just one of those things about Rainbow Dash you start to notice the longer you watch. If there’s no story-related reason for her to be at ground level, she won’t be, even if she’s just hovering in the air. This is especially noticeable in group shots, where all the ponies are standing together but Rainbow Dash is always hovering over them.

The ground is for losers.