Oh no, I wasn't clear: I am sure people read these agreements. I think most of the time, they don't understand them. Also, we can't always understand how these agreements might be applied even if we do think that we understand them.

I don't think we can hold people responsible for these types of contracts if they are under duress, for instance, under threat of the loss of their job. In this case the person signed in order to get the promised severance package, without which they wouldn't be able to continue with life-saving medical coverage, in my opinion that would also be under duress.