@Kathy211, I did not know that about the verified ID in South Africa.
It is good that you are concerned and thinking about the issues of security and safety. Your attention to these things are your main defense against the bad people.
I understand your feelings about Instant Booking; we felt the same way. We did eventually decide to use Instant Booking because of this line of reasoning:
1. AirBnB gives hosts all kinds of bonuses/benefits for using Instant Booking (since they are really pushing it)
2. If I did not use Instant Booking, I'm honestly not sure what I would look for in a guest profile to tell the good people from the bad.
3. Since I probably would accept everyone who had verified ID and positive host recommendations anyway, I'm not really changing anything by turning on Instant Booking.
AirBnB also claims you can cancel without penalty if you use Instant Booking (under the right circumstances). There is a healthy debate about the truthfulness of this, but that is what AirBnB consistently says.
Do you live far away from your listing? I feel the things that keeps us the most safe is that we are in the same building as our listing, so if anything funny were to start, we would know almost right away.
The thing that will keep you the most safe is you: your vigilance and attention. Are you able to keep an eye on your property?