I think a lot of people when they’re younger decide their character thinks that kind of thing because it’s a hook for conflict but the truth is even with the OOC offense it will obviously cause it just isn’t a good angle for adversarial RP - it’s just a bit cheap and will never go anywhere interesting + isn’t really something ever shown in the setting to be a widespread sentiment
When I was younger it was way more common for sure (even in my own roleplay) but I think eventually you realise there’s better stories to be told that won’t wind people up and you can still have your character beef with others for 100 other far more interesting reasons