D-ark MAGA
Bohurt
Some even forget to remove unnecessary parts of the AI's answer, check out first sentence of the abstract down there 👇
https://www.sciencedirect.com/science/article/pii/S2468023024002402
Such a small groups are fine for initial investigation, they have enough of a size to be acceptable statistically for most of the performed studies. I don't think they'd get approval from ethical committee overseeing animal experiments without initial study like this to conduct something on very high groups.
Those overly negative comments often come from USA. I've never had any major problems with self checkout in Europe and I generally go there as it's faster and you don't have to race against the cashier. Of course some chains have worse self checkouts, some have better but overall many people like it a lot. Even some older people who are not tech savvy use them.
Polish C is also described as /t͡s/ (e.g. co /t͡sɔ/). According to wiki both are dental and voiceless although one is plosive and the other affricate. As I've read their descriptions on wiki, they made a lot of sense - /t͡s/ starts with a blockade of airway (just as /t/) but the air is released slightly differently thus making the difference in sound produced.