Much like systems code, right? :D
(Mostly what I’m saying is that legalese is essentially natural(ish) language ‘software’ that has been developed and maintained over centuries by non-coders[1] and that most of the seemingly pointless or obtuse stuff is probably actually significant in weird edge cases.)
[1] Not by any means saying that systems code is written by non-coders! But some of it is written by wizards and becomes Deep Magic that gets repeated by less eldrich contributors because if it isn’t then the authors sometimes meet a fiery doom.