Earlier quoted context omitted.
If you do anything financial, legal, or business frequently you have to provide PDFs of signed physical documents. Every quarter I have to print->sign->scan->email multiple forms. Inefficient and wasteful? Yes. Also required by law.
Most places (government included) accept e-signature now, don't they? You might need to upload the PDF to docusign to make it a "legit" e-signature, but that sounds better than the absurdity of printing and rescanning an originally digital document.
Because on their end, they print it back out and keep a physical copy. That is their workflow. Many offices are still paper based.
Even at my work, we use docusign for some stuff, but will require physical signatures for others.
Printing and rescanning is absurd, but also very easy for anyone. Especially now, it’s less “print and rescan” and more “print and send me a photo with your phone”.