Board Thread:Naruto Discussions/@comment-1758775-20151007125942/@comment-26541067-20151009165800

in addition,i think in past eras they were more lax with the requirements of becoming a ninja.since they were in a gruelling war,they needed as many ninja as possible,even it meant using kids provided they had the abilities needed.but in recent peaceful times its likely they're moving away from taking kids as young as they did in the past