Standards do die off, up to a point. XML is widely used but the last time I really had to edit it in anger working in DevOps/web/Python was a long time ago (10 years ago?).
At this point XML is the backbone of many important technologies that many people won't use or won't use directly anymore.
This wasn't the case circa 2010, when I doubt any dev could have really avoided XML for a bunch of years.
Probably the world's most over-used and misused comic strip. JSON wasn't created as a response to a situation where there were too many data interchange standards.
