All true. In addition, people didn't worry about "emotional maturity" in the Shakespeare's era - Romeo & Juliet were "normal" for their time, shagging away aged 14.Having just finished a classics degree, one of the cornerstones of Greek and roman societies was patronage and influence. Supplying very young boys to the rich and powerful was seen as a legitimate leg up the social ladder. There is evidence that parents handed over their children knowing full well what was expected.
However the curious thing about the trial and eventual forced suicide of Socrates the philosopher was that he was accused of having relations with many young children!
It's is also very much a western argument here as in Pakistan for example, children as young as 13 will be put into marriages and expected to produce children as soon as they reach child bearing age.
Oh and there are islands off the coast of North America where incest and underage sex is the norm - primarily because the population is so small.
I don't know why I'm saying all this really - if it was down to me I'd switch the consensual law to what Canada have!