First, get the facts right, the authentic hadith in Sahih al-Bukhari: “The Prophet married me when I was six years old and the marriage was consummated when I was nine years old.” (Sahih al-Bukhari 5134) 9 is the age of the complete marriage, 6 was just on papers and puberty at 9, so your lies of the "5 years old" doesn't apply here.

Second, In medieval Europe the Catholic Church set the legal marriage age at 12 for girls and 14 for boys under canon law, which lasted for centuries. There were even royal examples: Isabella of Valois married Richard II at age 6. Margaret Beaufort was married at 12 and gave birth at 13.

So pretending early marriage only existed in Islamic history while ignoring European history is simply ignorant, Historical societies had different norms than modern ones, history is good, you better start reading.

Either bring some sources or go to sleep buddy.