## All the purposes such a vow might fulfil, are fulfilled in our being confirmed as Catholics - so such a vow is entirely unnecessary: there is no function for it to perform, theologically or otherwise. Which is why it is safe to say that no such thing will ever be required.
Besides, vows can be dispensed - but docility to the teaching office of the Church cannot - we arealready obliged by our Baptism to hear the teaching of the Church and to be faithful to it; so this docility (which is the issue that would be involved in such a vow as that suggested) is not the proper subject-matter for a vow.
Which is why I voted “no”.
One cannot have, as the subject-matter of a vow, an exercise of obedience which is already an obligation; because if there is an obligation already, we are not free to act otherwise. A Dominican cannot take a vow to pray the Rosary - it is already part of his life as a Dominican; for vowing a vow, implies freedom to act otherwise than is being vowed.
One is free to change the mode in which one is being (say) chaste: so that allows room for a vow - what cannot be changed, is the obligation to be chaste. Which is how a monastic vow of chastity is possible; there is a function in the Church for such a vow to perform. But there is no means of changing the mode of one’s docility to the Magisterium - one is docile, or one is not: there is no change in one’s manner of life which allows for such a vow to be possible,by having a function in the Church to perform ##