Unfortunately, power complexes. When more power is needed than json has (e.g. a schema language), there is xml and the xml ecosystem (e.g. xs), with all the too

Unfortunately, power complexes. When more power is needed than json has (e.g. a schema language), there is xml and the xml ecosystem (e.g. xs), with all the tools, features and standards you could possibly want... actually, more. Thus, it is the complexity of xml that keeps json simple. It is the same principle as keeping flies off the dinner table by dumping a pile of manure outside the front door.