Nor if you have a class of low paid (and before that unpaid) people who carried luggage for travelers. There was a lot of social change in the US after the 1960's, and travel only became democratized recently.
Presumably that's because most of the people flying in or out are traveling from/to other countries, and it makes no sense for them to own one set of luggage for India, and another for the rest of the planet, especially if the latter is compatible with the former anyway.
