They aren't saying you aren't welcome, it's more so that you likely don't know if you'll even like Agua Fresca. Mexicans know they love Agua Fresca.
Maybe Mexicans don't really like Gatorade, but they know that the Americans in Mexico would like to have some Gatorade - boom it's a niche, it's a business, profit can be made.
This is NOT discrimination, it's catering to a market. Discrimination is treating unjustly. It has nothing to do with providing X for X. Y could totally have X, no one cares, it's just that Y just may not enjoy it, relate to it or even want it.
You are in America:
Vending machine for Americans sells Gatorade
You are in Mexico
Vending machine for Mexicans sells Agua Fresca
Vending machine for Americans sells Gatorade
This is no different then X for X people.
They aren't saying you aren't welcome, it's more so that you likely don't know if you'll even like Agua Fresca. Mexicans know they love Agua Fresca.
Maybe Mexicans don't really like Gatorade, but they know that the Americans in Mexico would like to have some Gatorade - boom it's a niche, it's a business, profit can be made.
This is NOT discrimination, it's catering to a market. Discrimination is treating unjustly. It has nothing to do with providing X for X. Y could totally have X, no one cares, it's just that Y just may not enjoy it, relate to it or even want it.