I've had a few walkouts when I first started but that was due to me:
a) not screening properly and
b) being scouted out by local pimps to see if I was going to be competition to their brothel girls
Nowadays, I get no walkouts because:
a) I screen so stringently now I ensure I get the clients who are sure I'm the escort for them
b) I've stopped seeing "youngish" clients
c) I've relaxed my MO so it doesnt seem as if I'm operating a business but more like a FWB where I get a cash benefit for being his "friend" for an hour
I think one of the reasons that a lot of walkers are coming out of the woodwork could be due to the lack of cash flow some of the punters are experiencing due to the pandemic. They've become much more discerning on how they spend their money and won't hesitate to walk if anything displeases them about an appointment.
I had a client yesterday who told me he walked on another provider simply because it looked like she hadn't vacuumed her front hallway carpets!!!!
Don't take them personally and just say to yourself "that rejection was God's protection" and put it out of your mind.