I don't remember Trump supporters complaining so much when Trump refused to debate Haley, Christie, Vivek et. al. during the primaries. Was he hiding then? Was he afraid to be exposed when he had to face tough questions in a live setting? I don't know, his people seemed OK with it.
It's funny how they are accusing Harris of hiding, when she's out with voters every single day, at a pace that the geriatric Trump can only envy from his air conditioned sitting room in Palm Beach.