No doubt the fish dinner is traditional, but the antecedent- 'no meat on Friday'- was seen differently before the recent changes:
"In other instances the law of abstinence alone binds the faithful; thus ordinary Fridays are simply days of abstinence ... Throughout the Latin Church the law of abstinence prohibits all responsible subjects from indulging in meat diet on duly appointed days ... As a consequence, the law of abstinence embodies a serious obligation whose transgression, objectively considered, ordinarily involves a mortal sin. The unanimous verdict of theologians, the constant practice of the faithful, and the mind of the Church place this point beyond cavil."
From http://www.newadvent.org/cathen/01067a.htm
Regards, Doug in New Mexico, still the home of 'all you can eat fish' during Lent.

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