Clothing headcanon: the Hatake sigil
Unlike most clans, Hatake rarely display their clan’s sigil on their clothing or even on flags/armor and Sakumo is no exception to this rule. Public consensus is that it’s related to the nine-pointed diamond’s resemblance to a target, and they aren’t far off. The policy dates back to the warring states period. Given that the Hatake have always been one of the smaller clans, marking their members did more harm then good. Pragmatically, a clan sigil acted as a bull’s eye for enemy ninja clans and discouraged neutral parties (blacksmiths, farmers, etc) from interacting with or supplying them for fear of retaliation. Not wearing a ninja sigil gave Hatake clansman plausible deniability as civilians thereby flying under the radar of larger clans. Passing as civilians also let Hatake take on espionage and sneak-attack missions with less risk of getting caught. In contrast, the only Hatake who wear the nine-pointed diamond are ninja who are trying to stand out or can’t blend in: those whose reputations are too well known to hide their surname or those who act as the clan’s public face i.e. the clan council. While Sakumo arguably falls into the first camp, he still opts out of wearing the Hatake pattern. In the grand scheme of things he thinks it’s more important for someone well known as he is to identify with his village rather than potentially show favoritism to his own clan. It’s both a show of village unity and helps shield his family from his many enemies in albeit a small way.