Well, you, as a programmer, can make the assumption that anyone creating JSON for consumption by your program will obey this requirement. Generally speaking, i

Well, you, as a programmer, can make the assumption that anyone creating JSON for consumption by your program will obey this requirement. Generally speaking, it's not a good idea to make that assumption, because even people within your team or company may not know of that rule or expect it to be enforced and may break it. Also, there's the problem of different JSON libraries behaving differently. Such as using unordered hashmaps as an internal data representation for parsed content, making compliance difficult.