*Spoilers for the end don't read if you haven't read/seen the ending*
Kakyoins parents think that him going to Egypt was just him running away, so where he never returned they probably think he just ran away and never came back.
Spoilers for those who do not know the end of part 3!!!
@leeaver I thought the same thing and that's just sad =((((
Kakyoin was such a great character with a sad past and a cruel end. At least if his parents would have known he would have gotten a proper burial
Also they could just be disappointed in their son because they thought that he just ran away, when in reality he was a hero who saved the world from Dio
That's just too sad