I don’t really know what to say except that your experience doesn’t match mine.

I could look up research articles on best practices but I often find that those things just pay lip service to what we are “supposed” to do and not what actually happens.

Also I take exception to this notion that unless your country has economic power in the top 20 of the world, then whatever practices you have has no value.

Extreme specialization is a byproduct of rich economies but that shouldn’t be confused with it being a good practice in all cases.