In my experience, most engineers and product managers assume that users are governed by some monolithic, absolute power with a single official way of doing thin

In my experience, most engineers and product managers assume that users are governed by some monolithic, absolute power with a single official way of doing things. This is useful early on to deliver their MVP and grab their first batch of users. However, their assumption quickly falls apart when a significant subset of those users live in some region with their own regulations. Gambling/betting, invoicing, and payment processing are just a few examples. If I see a flag icon next to a language, it's not worrying by itself, but it's a red flag about how things work under the hood. It's telling me that the company does not go the extra mile to build a realistic mental model that works for all users. And eventually, the product's limitations will impact some feature that is mission critical for my business.