I live in florida. There are people here that literally carry Sriracha sauce in their car. I will have people over for breakfast [eggs, bacon, toast, muffins], they will go to their car, and pour Sriracha sauce all over their eggs. It's pretty normal for them to put it on everything they eat. Eating just a potato seems strange to them, it needs that burning sensation. I think it is almost the opposite of a developed palate - it's more like they lost their ability to detect and enjoy simple flavors. Like an alcoholic that can't be in a social setting without liquor.
I think that's the keyword here. The behavior you're describing does sound very dependent, but those dependent on alcohol are a minority. I don't have numbers on capsaicin, but I'd be comfortable betting that the need to spice everything is also not the norm.
If taste and flavor preference is largely environmental as is argued, it makes sense that extremes exist on the edges.
You're already looking down on people who taste things differently than you do.
Someone else might acknowledge that increased complexity is typically an indicator of a later development stage, while preferring or finding moral goodness in an earlier stage of development, or having no value judgement on it at all.
Let's go with "people who've had less opportunity to try novel ingredients and flavors". Does that work for you rendaw?
I'll explain it to you :)
I think a lot of people cook how their parents cook. I taught my mom how to better season her cooking, to great success, but I don't blame her for not ever really learning. She learned from my grandma who spent her life on a tiny farm in the prairies, I'd be surprised if they came across cumin very often.
So, you grow up eating beef and vegetables seasoned with salt and pepper and homemade butter and eventually your palate doesn't really require the same stimulation and variety that people with access to more varied ingredients do. It's not that plain-eating-folks aren't aware there's more variety out there, but if they've spent their whole life _without_ those other options, it's just not something their body naturally want. As someone who appreciates music, it'd be easy for me to look down upon those with less developed palates, but to what end? People enjoy what they enjoy, I don't think there's any superiority to be had in liking basil just like there's no superiority to be had in liking djent.