It was chalk and cheese with Sparta's model, which had been designed to train fiercely loyal, gallant and physically perfectly healthy warriors. Upon turning seven, boys would have been moved out to live in either schools or barracks, wherein they were exposed to sports and combat and endurance training with iron disciplines. Albeit being elite combat troops, they were, for the most part, illiterate.
To all appearances, my obnoxious and superficial opinion on the topic is that this is neither bewildered nor abhorrent. Instead, we'd better blaspheme the "dull" management from the very beginning, which fails to mitigate the foreseeable risks.