Product design often inherits assumptions about connectivity, language, device access, accessibility, and cost. Those conditions vary among people and places, including within a single market. Treat them as questions to validate rather than traits to assign to a population.
Learn from intended users
Ask how people will access the product, what devices and networks they use, which languages and assistive technologies matter, and what costs are acceptable. Test with the people the product is meant to serve. Do not substitute broad market generalizations for direct feedback.
Make conditions explicit
State which browsers, devices, network conditions, and languages have been tested. If a feature requires a connection or a specific service, explain that clearly. When conditions are uncertain, design a useful failure state and a way to continue or recover.
Good design is not the result of a single geographic perspective. It comes from understanding context, testing assumptions, and adapting the product to evidence from its users.