I'd say that part of this is the influence of globalisation that makes certain things that used to be acceptable no longer acceptable. You can see this with a l

I'd say that part of this is the influence of globalisation that makes certain things that used to be acceptable no longer acceptable. You can see this with a lot of regional delicacies. For example, my grandfather from Normandy used to eat camembert only after it developped maggots, no one I know nowadays does that, nor can I find any reference of people doing this online. People in Caen used to eat Pork lung (mou de porc), it's now very hard to find anywhere. It's also the same in Central Mexico with the popularity of eating Escamoles diminishing (but that's also partly due to the price since it's not a cheap ingredient) but it's still not particularly difficult to find restaurants serving it and it's not only for tourists. There's a lot of examples like this of regional food that have fallen out of favour. From what I've learned when talking to friends in Thailand, it's the same with insects, it's a rural food (but not from hill tribe people or minorities just from less urbanised parts of Thailand), that's fallen out of favour with the upper middle class. That doesn't mean that only foreigners eat it, there are plenty of locals who eat it, it's just less common than it once was and is becoming less and less common. In the case of grasshopper and cricket, you're right it's fried and food that goes well with alcohol but that doesn't mean that there's not taste or that it doesn't taste good. Crickets definitely have a very distinctive flavour and one that fits well with drinks in the same way that chips can be nice with apéritifs.