For the new skater, the distance between each feet can be the hardest part to learn. Part if this is that young players, usually less than 7 years old, are still working on their balance.
And the easiest stance to stand in is the tri-pod. It looks just like a camera tripod: both legs are spread out further than shoulder width apart and with straight legs. This naturally puts the player on their inside edges but tilted very distinctly to the inside. So much so that if they lift up one foot, they will immediately start to fall over. By doing this with both feet, the forces counter-balance each other giving the player a stable base.
The problem with this is that when skating, the player will have to balance on one foot while the other pushes. That is nearly impossible in the tri-pod. The tri-pod makes the player so stable that they do not want to have their body weight on one foot.
The hardest stance to stand in is the tooth pick. This is when both feet are so close that they are nearly touch each other. Your body weight is essentially on one foot in this position, and there is very little stopping you from falling over. The tooth pick also makes it difficult for a player to push off their inside edge. There is little available room to turn your ankle inwards and then push off from.
The correct stance is to have the feet shoulder width apart. This allows the player to easily transfer their body weight between each foot while maintaining a solid base.