Originally Posted by tdk6
Limiting her from what?
Posture/skeletal alignment is a key in most sports.
Picture a mogul skier with their 'butt out' - no postural 'pillar' and no crispness in their execution.
In this position she compromises her posture, power, quickness, and accuracy - she'll have no spring in her step. She's stuck making one type of turn - as seen as a park and ride.
Her balance is chest forward - hanging. She'll tend to hang on her shovels. Her balance has no litheness, although she does show a budding sense of on snow rhythm.
Moving laterally, she'll look like she's wagging her tail, without much effect to the edges.
A tilted pelvis (arch back/ butt out) will cause the feet to pronate.
Her skis will always be 'mushy' from this position.
She will experience lower back discomfort in extended ski time as she gets older.
Her natural athletic ability will be compromised. She will be limited in her learning.
Go play tennis, basketball - anything that requires lateral movement - roll your pelvis, and play from that position. Kick a ball, whatever.