"Given the number of formality rules which affect land law transactions, then the questions of whether formality is useful or useless, and of when (if at all) it should be required, are of particular relevance to land lawyers."

Following P Critchley's article as above, critically evaluate whether the requirement for formality detracts the autonomy of the landowner in dealing with his or her property.

Question: What is the requirement of Formality?