Are you from UK perhaps? Because UK is the only place I know where "asian" also includes India and Pakistan. Everywhere else India is sort of separate entity and always mentioned separately.
yes!
In Uk asian = south asian. As many decades ago we had large migration from those countries and less of others.
You don't get out much? (in alpha) Asia, Australia, Canada, Europe, Middle-East (sorry, that's a western term) all include west Asia in the definition.