Why is the number 17 considered unlucky in Italy?

In Italian culture, the number 17 is considered unlucky. When viewed as the Roman numeral, XVII, it is then changed anagramtically to VIXI, which in the Latin language it translates to "I have lived", the perfect tense implying "My life is over." (c.f. "Vixerunt", Cicero's famous announcement of an execution.) In Italy, it is not uncommon to notice that buildings do not have 17th floor, hotels do not have a room 17. The Italian airline carrier, Alitalia, does not have a seat 17. Renault sold its "R17" model in Italy as "R177."
https://en.wikipedia.org/wiki/17_(number)

Seventeen is considered unlucky in Italy because rearranging the letters in the Roman numerals for 17 could spell "VIXI" which means "I lived" in Italian. Thus...I am now dead.

https://www.independent.co.uk/sport/football/european/bad-omen-italy-their-unlucky-number-comes-400380.html

An anagram of the Roman numeral 17 -- XVII -- spells out "VIXI," which in Latin means "I have lived"; that is, "My life is over," or "I'm dead."

lifeinitaly.com/heritage/superstition.asp no longer exists

In Italian culture, the number 17 is considered unlucky. When viewed as the Roman numeral, XVII, it is then changed anagrammatically to VIXI, which in the Latin language it translates to "I have lived", the perfect implying "My life is over."

https://en.wikipedia.org/wiki/17_%28number%29