I'd presume all but the most basic education would be unavailable to peasants. By basic education, I mean it would be a stretch for a lower class citizen to count to ten, or write his name.
I suppose, however, it depends on ones job. Messengers and military scouts will have to read, write and count, as they cannot convey useful information otherwise.
As a general rule, higher class = higher education
Some hoplite spears were 2.7 metres (8 ft 10 in) long.
That's bigger than me, if that is your issue. Ancient weapons could be huge, and the Hoplite Spear would make an excellent polearm for the era.
I don't quite understand what you mean by "more sophisticated polearms". Could you explain, or give a comparison? I'm not trying to sound rude or ignorant, I genuinely don't understand.
I currently stand by my ruling that all cold weapons are acceptable, unless someone has a major problem with it.
I mean, it hardly makes a difference if my soldiers are wielding Gladii or Wakizashis does it? They're both swords, both bladed and both are designed to kill. The only differance that it practically has is the time periods, but they look dramatically different aesthetically.
And to return to the cinquedea, is it really that much of an issue if we have cinquedeas rather than, say, daggers? They do the same job equally well and have the same strengths and weaknesses, just one looks prettier than the other.