When I put myself into the shoes 👟👟 of a binary tree wearing pants, I can imagine some wild way how I could put on some very stretchy pants in scenario B.
But scenario A must be a pain in whatever-it-is-for-binary-trees, like when getting ready for work in a hurry on a Monday morning.
Also, putting on that many shoes 👟👟 gets worse with age, I think. When binary trees grow, they get deeper/higher and have to put on increasingly more shoes. ☹️
A small instance for a few friends.