It's not really either of those...
Both natural ability and willingness factor in...
It simply cannot happen...
"Induction" just means an "entry point"...
Hypnosis is a focus and imagination...
Pretty much everyone with average or better intelligence and a bit of imagination.
Anyone with even average intelligence and a bit of imagination can be hypnotized to one degree or another.
Nope. Actually, quite the opposite....
What your doctor says always goes...