Walter, you are a very smart guy. And this is a site which attracts people with above average intelligence and education. It is easy to forget that not everyone is as smart or well-educated as we are.
I know a guy who has been diagnosed with borderline intellectual functioning (i.e. his IQ is above the cutoff for intellectual disability, but only just). He blames it on his alcoholic mother drinking when she was pregnant. He's able to live independently, he drives a truck for a living. But no way is he ever going to be able to comprehend all by himself the dense fine-print of a contract. The law has to look after people like him, not just people like you or me. There are literally millions of people like him out there – around 13% of the population has an IQ in the borderline range.
> The consumer can always say "no". An important feature of a free market is there are no forced contracts. Saying "no" is the ultimate power.
Some products, people need to buy to meet their basic human needs and to function in society. For many of those products, there are only a small number of vendors available. If all of them demand you sign an incomprehensible barrage of legalese, you can't realistically say "no" to doing so. It might not be a "forced contract" in an abstract theoretical sense, but it sure is in a practical sense.