Arya desperately wanted to explain, to make him see. “I was trying to learn, but …” Her eyes filled with tears. “I asked Mycah to practice with me.” The grief came on her all at once. She turned away, shaking. “I asked him,” she cried. “It was my fault, it was me …” Suddenly her father’s arms were around her. He held her gently as she turned to him and sobbed against his chest. “No, sweet one,” he murmured. “Grieve for your friend, but never blame yourself. You did not kill the butcher’s boy. That murder lies at the Hound’s door, him and the cruel woman he serves.”
arya wasn’t naive for asking mycah to play. she wasn’t wrong for treating a poor person like a human being. nor for defending him. despite being a butchers boy he deserved to be protected. the fact that he is seen as disposable trash by a bunch of tyrants is literally a social construct that can and should be challenged. thats why arya is a hero for fighting back against this classist oppressive system.
its also how she was raised. its not like arya’s “”modern”” attitude came out of nowhere. ned believed in getting to know your men and letting them know you. its a fundamental part of his legacy that arya honors. its why she’s going to be the leader the north and its people deserve.
but arya was naive about one thing: that all men will stand up for whats right. they won’t. this is the hardest realization for her but she looks at the fallout from the trident with eyes wide open. (unlike some other character i wont mention) arya understands now, not that she shouldnt befriend the smallfolk, but that the world is very dangerous and if she wants justice she’ll have to get it herself.