Which is why it’s infuriating when someone requires a “wet” signature - AFAIK it’s not more binding than above, so why are you forcing me to print something out, sign it and scan it?
Inertia. Lack of knowledge. This problem feeds off itself. If both parties agree to sign electronically it’s valid. In a population of luddites adoption remains low because they’re worried other luddites or cautious people don’t accept electronic documents. One silver lining to Covid is that businesses have been forced to adapt by moving up their digital workflow deployments or go out of business.