About that: highly depends. E.g. here in Germany, a properly done cryptographic signature is equivalent to an ink signature on a paper contract. Docusign is not. (Some delivery startup recently found out the hard way, when they discovered that parts of their contracts with workers were invalid due to that, and they thus had given them permanent contracts where they had intended them to be temporary)

Sadly the digital signatures are uncommon, because well, its a digitalisation effort in Germany, of course nobody did anything competent about actually implementing it. (e.g. a while after creating those laws, ID cards were changed to be smart cards too. And instead of just giving everyone a usable cert on one of those that's a paid extra)