L.!.
We kept our daughter in her crib until around 30 months. Pediatrians recommend they stay in a crib until close to age 3... If your daughter is "flipping" directions while asleep, then that is one indication that she should stay in her crib--otherwise she might flip out of the toddler bed or land on top of the wooden corners/footboard.
I moved the crib to the middle of her room, off the wall. She couldn't climb out if it wasn't against a wall.
If you do introduce her to a toddler bed now, just be prepared that you may have several months of rough bedtimes, until she's closer to age 3 to develop the cognative milestone to understand imaginary boundaries (as in, "stay in bed"). Google "developmental milestones, imaginary boundaries" for more tips.