If Wei Wuxian's parents were still alive, you can bet that he wouldn't have to hide scars that came from zidian, he wouldnt have to smile away his pain because that was the only way to get throught, he wouldn't have to listen to people speaking ill of his parents and he probably wouldnt have felt that he needed to give up his golden core either.

He would have probably had scars that came from tripping or falling like all children do, he wouldnt hide them either. He'd just smile and recount the story with joy. If he felt pain, he would go to his parents and they would comfort him with warmth and reassurance that they were there for him. And he would only hear laughter and loving words from his parents, because they would never need to tell him harsh, unforgiving words.