Is it true that in Calabria, a man's true life's work begins at the age of 33?

A recent report on a gangland killing in Melbourne, Australia: “[In Calabria] one rite of passage dictates that a man begins his true work when he turns the age of Jesus Christ at his death, and so at 33 Acquaro he was given his first major brief. He was to represent Calabrian identities who were witnesses in the alleged Mafia murder of fruiterer Alfonso Muratore.”