I think it's important to mention that genetics play a huge role as well. I do all of these exercises but have very bad turnout. My hips just don't allow my leg to turn that way.
I have been doing clamshells as a postnatal strengthening exercise due to a birth injury. I am not a ballerina but I started noticing I could suddenly turn my feet in ways that weren’t possible before pregnancy. I guess I know why now! 😂
The first one will damage the knee ligaments unless you are born with the natural turn out. The other two are safe. But go ahead and test it for yourself. Then, remember: "Told you so!"
I think its important to note that "perfect turn out" is not sticking your feet in a different direction from your knees. That is known to cause major injuries. Turnout has to clme from the hip so thst your feet and knees can be aligned.
When I do first position I can’t even put both of my knees together for some reason, my leg doesn’t work that way & I keep getting told I don’t stretch enough but I truly just