I find it annoying that npc's always find an excuse to tackle anything just because they have something that they don't like. Like for example tanjiro's earrings all because of the pattern that looks like "the rising sun" flag on WW2, only....... they got the wrong era.
WW2 happened during the Showa era, which by the way was AFTER the taisho era, and another thing, the manga kept calling them hanafuda patterns as in playing cards like mahjong tiles. I don't suppose those npc's want to abolish playing cards then or anything to do with gambling for that matter.













