PDF is an incredibly (stupidly) extensible format. There are tons of government forms that (sadly) bake in complex workflows into PDF forms.
Given that the whole world has been running on PDFs for decades it's makes more sense to leverage the existing infrastructure and move it towards something more functional over time. Introducing a new format will just lead to another format the achieves 0.5% marketshare and then is abandoned after a few years. Microsoft basically forcing people to use XPS in windows (>70% market share of computing) still wasn't able to achieve meaningful usage or change.
I expect that PDFs will not go away for 20 years at least, but who knows
Given that the whole world has been running on PDFs for decades it's makes more sense to leverage the existing infrastructure and move it towards something more functional over time. Introducing a new format will just lead to another format the achieves 0.5% marketshare and then is abandoned after a few years. Microsoft basically forcing people to use XPS in windows (>70% market share of computing) still wasn't able to achieve meaningful usage or change.
I expect that PDFs will not go away for 20 years at least, but who knows