In every parable, whether the parable was intended to be literal, or a figure of speech example, they were all truthful and possible.
People going out to sew crops.
People going out to tend their vineyards.
People going out to gather fishes in nets.
People going to town to earn a wage.
People wearing old and new garments.
People going forth to a wedding.
Blind people leading blind people into a ditch.
Trees putting forth branches, fruit, and leaves.
Sheep getting lost and gathered in by the shepherd.
All of Jesus' parables, whether literally actual events, or just examples Jesus made up to teach a lesson; were all truthful, possible, and something related to every day life for all of the people listening.
But that entire pattern stops dead in it's tracks, with the viewpoint that wants to say that Luke 16's presentation of Jesus is just a parable and not a true situation.
In the Luke 16 story; some would say that Jesus isn't presenting a truthful, possible, realistic lesson at all. Jesus is making of a post-death situation that is not true. Jesus is making up elements of this untrue post-death environment like awareness, suffering, torment; that also are all untrue. For the most part, the entire 'parable' of Luke 16, once you leave the land of the living, and both the Rich man and the beggar are thrust into a completely false, untruthful, impossible venue.
This makes Luke 16, if not an accurate and true representation of the post-death afterlife of both the righteous and the wicked, a falsehood created by Jesus, and perpetuated by Jesus, of something that would NEVER occur. (unlike all of the other practical and realistically possible parables Jesus told).
That is the problem with attempting to classify Luke 16 as a parable...not that it couldn't be a parable; but that if one does that application, they should not take the next step, and force Jesus into fabricating known falsehoods and misleading information; of which the entire parable does do...(if it isn't understood by the reader to be a real place Jesus is warning against in His figurative parable).
Think about it folks. Did Jesus specifically intend to deceive with Luke 16, by presenting an untrue and false situation, as if it were true and expected?