Nobody reads them because it would be completely infeasible to do so. If I sat down and read the Terms and Conditions, Terms of Service, Privacy Policy, End User Rights, End User Licensing Agreements, etc, for all my computer hardware, operating system, browser, ISP, router, and electricity company, it would take me a week of straight reading before I could even log on to this site. Let's not forget the small print on every device in your home, every account you own, every piece of software you use, every app you download, every bill you pay, etc, etc. Sure, I would advocate for reading the important ones where money is involved, but no one can or will ever read all the small print for everything they use.
There are
stories of companies hiding cash prizes in their Terms and Conditions, and it taking months for anyone to claim them. There are also some frankly hilarious things hidden in some small print. For example, the following clause in Amazon Web Services' Service Terms, which allows their Lumberyard Materials to be used in the event of a zombie apocalypse:
However, this restriction will not apply in the event of the occurrence (certified by the United States Centers for Disease Control or successor body) of a widespread viral infection transmitted via bites or contact with bodily fluids that causes human corpses to reanimate and seek to consume living human flesh, blood, brain or nerve tissue and is likely to result in the fall of organized civilization.