Here also the laws about that are not well defined. Gypsies here getting married at age 12-13, same goes for some far back rural provinces. [What are they doing after is for the column of some ''Teen troubles'' magazine.]
There are even some old customs to be ''promised'' to the boy/girl at age 12 in ''backwoods Bosnia'' . It's like very early proposal, but it does not involve any sex at that age (although it can happen).
As a matter of fact, my grandma ''promised'' me to some girl in her village. Imagine a boy who is borne in town, whose parents came from the rural back, living in town enough to get fairly emancipated, coming to see his relatives every year, doing ninja stunts to avoid any contact to that girl (it look banal to you now, but in those times we were more interested in play, sports, etc then sex. Must be some ''internet porn pollution'' that affects the brains of today's youngsters).
The whole idea of heaving underage sex was a taboo. But, now it seams almost normal that one 13-teen old wants to have sex every 5 min?
If you mother still is thinking for you what will u eat/wear/do how the hell can you took a responsibility for some poor child you would made some girl of your age?