Board Thread:Lion Guard Discussion/@comment-39401861-20190719171913/@comment-31214635-20190720194737

If Simba did give him the scar, it would be by accident. Like Scar fooling Simba into attacking him (flame manipulating or something).

I think Scar will be the one to give Kion the scar myself. An everlasting reminder of his uncle, perhaps to even trigger Simba's memory whenever he sees his own son.