Minors (children aged 18 and less) totalled 14.10 percent of the population compared to pensioners, who numbered 25.95 percent. This compares with the Italian average of 18.06 percent (minors) and 19.94 percent (pensioners).
The average age of Florence resident is 49 compared to the Italian average of 42.
https://en.wikipedia.org/wiki/Florence#Demographics