>Kosher food in supermarkets? Unknown to me. In the Netherlands you have to live in one of the few jewish neighboorhoods to get kosher food.

I don't know how it is in Europe, but in the US, lots of food is kosher and appropriately marked. Many of the mainstream food manufacturers make their products kosher. The item that can be hard to get for those living far from Jewish communities is kosher meat.

>> I guess that's one of the main reasons why orthodox jews live together in a jewish neighboorhood.

No, the reason Orthodox Jews live together is that they need to be within walking distance of a synagogue.

Tamar