They write the thing the way they are written because likely there was a case where simpler language lead to the company losing in court. There's also a princip

They write the thing the way they are written because likely there was a case where simpler language lead to the company losing in court. There's also a principle Contra Proferentem, that intreprets all ambiguities in favor of the non drafting party, so the drafting party should be extra careful and write all this pesky legalese.