> If one is able to avoid the terms of the contract by claiming one didn't read it, the whole system falls apart.
Except, Courts have ruled that you can, at least sometimes, get out of the fine print of a contract by claiming you didn't read it. For example, see the notable 1962 Supreme Court of California case, Steven v. Fidelity Casualty Co [0].
In 1957, plaintiff purchased a life insurance policy covering plane crashes, from a vending machine in Los Angeles, with his wife as the beneficiary. His itinerary took him from LA to Chicago, and from there to Dayton, Ohio. On his return from Dayton to Chicago, he'd scheduled a one night stopover in Terre Haute, Indiana. In the morning, he went to the airport in Terre Haute, and was distressed to discover the flight had been cancelled due to technical issues, and he was going to miss his connection in Chicago. The airline agent referred him to a charter airline, who organised a charter flight for him and a handful of other passengers back to Chicago. Sadly, the charter flight crashed, and he died.
His widow sought to claim on the life insurance policy. The insurer denied the claim, on the grounds that the fine print of the policy said that it only applied to scheduled air carriers, not charter flights, and hence the flight on which the insured died was excluded. His widow sued the insurance company in the name of her deceased husband. The trial court sided with the insurer, on the grounds that this clause was clearly stated in the fine print of the policy, which the policyholder was expected to have read, and he had signed to say that he had.
However, on appeal, the Supreme Court of California overturned the judgement, and ruled for the widow. It held that, for consumer insurance contracts, any clause or exclusion which the policyholder could not have reasonably expected, must be pointed out prominently, not buried in the fine print. Since, it ruled, the policyholder had no particular reason to expect the exclusion of charter flights, and the insurer had not prominently stated that exclusion in the policy (e.g. by using a larger font), it was not legally binding.
And, from what I understand, the rule established in this 1962 case is followed in California law to this day, and has also been adopted by the courts of several other US states
[0] https://casetext.com/case/steven-v-fidelity-casualty-co