@Leadfoot,
People believing in their own volition and guilt is not proof of free will.
Culture does that. Just look at general belief systems like, Urban myths, Religions, mainstream ethics, etcaetra, all similar mass cultural manifestations in social context that misslead ppl. Moreover, what ppl do actually regret is not getting to a better judgement, and that is the cause that leads them to believe knowing what they know post factum that they would do otherwise. Obviously this is a fallacy, once you only come to said conclusion a posteriori.
When ppl say it was my fault what they mean is that they miss calculated, not why they miss calculated.