I can at least confirm that my daughter was very much surprised when her balance bike [0], which is essentially a small draisine, stayed upright when she lifted her legs.
[0] https://cdn.thewirecutter.com/wp-content/uploads/2017/12/bal...
[0] https://cdn.thewirecutter.com/wp-content/uploads/2017/12/bal...
I forget completely where I might have read or heard this, but I love it so much I'm going to keep telling it. Can anyone confirm?