> However that doesn't help much if you are a foreigner and don't speak English well.

Well... welcome to the world? You'll have the same issue traveling to South America, Europe, Asia. When you travel and end up in a country where you don't speak the native language, communication gets more difficult. This is a non-issue.

The issue being discussed is the lack of price tags. If I'm a foreigner and don't speak the language, at least I know how much I'll pay beforehand.

Quite. Reading numbers is far easier than someone saying those numbers in a foreign language.

If someone speaks 10.43 to me in German, I have no idea.

Even street vendors in random Asian places will punch the numbers into calculator and show you. You don't have to understand the language.

Have to? No. But that's not the point.

it's an issue when you are an introvert, or busy, in a large market. shopping would take hours if i had to ask every stall for the price of every item that i want. so i usually ignore stalls that don't post prices.