I am still not convinced that there was such a thing as a Spartan culture, aside from being suicidal maniacal warriors, like the Incas I think who once a year played a game of something that looked a bit like American football and the losers were executed. There were also altars for human sacrifices that according to European witnesses were covered with several inches of dried blood!!!! Some cultures!!!
You can't trust how a culture is portrayed by its conquerors, who have a vested interest in making it sound evil and worthless so that their conquest comes off as justified. And it's not like Europeans at the time didn't have a lot of cruel and bloody customs of their own, like the Inquisition.
The question is, where does our idea of Spartan culture come from? Is it from the Spartans' own writings, or is it Athenian propaganda meant to make the Spartans sound inferior?