Please help me undertand the fable "The Untouchable" by William March
There is this part. The untouchable man in a cave replies "I only know I was an untouchable of parents who were like myself," when asked "Do you know why you're an untouchable and I am not?" by a traveller.

I don't know what the untouchable man means by that..
I guess.. maybe it's about social position or something? like.. caste system, he's very low in social class just like his parents was?

Help me~~
Thanks a million~!!!

Question

Please help me undertand the fable "The Untouchable" by William March
There is this part. The untouchable man in a cave replies "I only know I was an untouchable of parents who were like myself," when asked "Do  you know why you're an untouchable and I am not?" by a traveller. 

I don't know what the untouchable man means by that.. 
I guess.. maybe it's about social position or something? like.. caste system,  he's very low in social class just like his parents was? 

Help me~~ 
Thanks a million~!!!

Answer

You have the correct idea.  These are people that would not be acknowledged.  To touch one or converse with one would be to be an insure dirty thing to do from member of a another class.  They are equal or lesser than stray dogs.  (is the concept, anyway)

Answer

Thanks for your comment, 1/2 prince~ :)

Answer

I haven't read the book so I don't know for sure, but i think it is something to do with the caste system. For example in India, the lowest caste is Pariah also known as untouchables. Then, people are born into their caste. This means that the son of an untouchable is also an untouchable.