I have seen some fans asking about other characters' parents like Misty's, Tracey's and Gary's parents. Of course some of those fans who asked about other characters' parents also asked about Ash's father! Some fans thought that they are dead and some other fans thought that they are alive! Like what I said in this answer from Pokémon Answers, It's unknown what happened to them but I think they're alive and they live in a different house.
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