>>2594433Because the risk you take by taking the plane to the actual place is higher than the risk of anything going wrong in the procedure.
You're probably locked in place, and a robot does it to you. It's precision is a billion time more accurate than any trained human who would still have done all the test to ensure you get out correctly.
People call it "an operation", but I got my eyesight fixed 5 years ago with a laser. It lasted 20 seconds where I had to look at a red dot in a black tube with each eye while laying on a table (eye didn't have the same vision score, they adjusted accordingly prior to the procedure).
Now BAM ! 30yo and vision is still perfect. They warned me natural aging will cause natural degeneration, and I'll have to lay back on the table in about 25years from now (or wear light glasses as all old people end up doing anyway).
Cost me the whooping price of (approx in $) 1500$, with the 2/3rd of it covered by my insurance.
See ? Nothing to fear. It's unnatural for a human being to be underwater, I agree, but I believe you can hold your breath for more than 3 seconds. It's fine.