We're in 2017. We live in a globalized world where everyone wears the same jeans and t-shirts, and there are "Indian" and "Chinese" restaurants all around here in Europe.
Sure cultural differences still exist but they're subtle and slimmer as they've never been in human history and getting even slimmer by the minute. People are much more different to each other by their personality than by their nationality. Adding each 190 U.N. country as a tag and forcing users using one of them on every question is, in my opinion, stupid.
Even worse is the fact that some U.N. countries, including both large countries such as India and small countries such as Switzerland, have major cultural gaps within them.
The biggest cultural difference in my opinion is between urban people (more globalized and open to new ideas) and rural people (more connected to traditional ways of living). It's hard to explain exactly in english, but based on my own personal experience, the cultural gap between Geneva, Switzerland and London, UK or Berlin, Germany will be very minor as all those places are globalized, highly connected dynamic cities - on the other hand the cultural gap between the lower half of Montreux - Switzerland which is a city and its upper half which are rural mountains is huge despite being in the same municipality.
As such, providing a country in which a certain situation happens does not necessarly help to give answers. People's culture vary not only from which U.N. state they're in but also depending on their religion, and rural/urban context, and in the end people are different to each other anyway.
In cases of small countries, such as Switzerland, potential answerers from other parts of the world might come with valid answers but be reluctant to give them because they have no idea what the so called "culture" is like here - but who cares, ideas from other parts of the world can still be valuable here.
However having some tags about wide cultural areas such as "western world", "muslim world", "india" and have them being recommended, instead of obligatory for every question, would make much more sense.