Only after I have confirmed. I agree - it IS unreasonable for sitters to have to interview in person. I would never ask for that!
I wouldn’t stop by for a meet and greet before confirming a sit. It’s not a job interview and pet parents are not paying for my time. I have stopped by once to meet a skittish dog before the sit but only because I was already in the area on another petsit and also because the sit was already confirmed.