I also agree it's too young although being realistic it is somewhat semantics. Not like teenagers will suddenly say, oh the laws changed let me not "do it" now...although I still feel that is too young, condones it, and takes away legal recourse when it may be warranted.
Not throwing stones I was married super young also, but a few states in the USA like Alabama, New Hampshire can get married at low as 13 and 14 anyway. Been cases of 14 yr olds forced to be married reported. Not cool in my book.
Not sure why anyone thinks it worse to have sex...then to get married and have sex at 13. Same difference, maybe worse. Many laws worldwide need to be looked at and changed imo.