Just as for some denominations, the Bible is the last word, personal experience is the last word here.
Ideas can be accepted or rejected, even opinions can be accepted or rejected - unless of course they are based on personal experience - and then they are sacrosanct.
So here it is bad manners to question personal experience.
And I admit I find this as annoying as someone quoting the Bible to me as the last word.
But at the same time I can see that personal experience is the last redoubt. And when personal experience goes, there is nothing left.
So it would be cruel to cast doubt on personal experience.
But my annoyance with you allows me to be a little cruel.
For instance, personal experience is no more than anecdotal.
And the anecdotal can't be used to establish any broader principles.
But worse if you rely ultimately on personal experience, you end up as isolated individuals.
There is no possibility to join together for larger social ends.
Indeed the extreme individualists raise their hands in horror and call it, "Socialism".
But the tragedy is that if you are atomised individuals, you are in fact at the mercy of larger social forces.
And you have no way of understanding these larger social forces, and so they seem mysterious to you. And in response you are attracted to conspiracy theories and paranoia.
When you rely on personal experience and have no understanding of society, you become prey to any scamsters that come along - like Mrs Myers and her daughter Mrs Briggs.
But the faith in personal experience is deep and profound. And can only be described as a religious belief.
And this is a religious belief held by one whole nation.
And this belief is de rigueur here.