Quote from : The Cloister Walk Book

To eat in a monastery refectory is an exercise in humility; daily, one is reminded to put communal necessity before individual preference. While consumer culture speaks only to preferences, treating even whims as needs to be granted (and the sooner the better), monastics sense that this pandering to delusions of self-importance weakens the true self, and diminishes our ability to distinguish desires from needs. It's a price they're not willing to pay.