Astronauts train for doing astronaut things like spacewalks and other zero-g activities. I would expect a tourist needs to demonstrate they have the fortitude

Astronauts train for doing astronaut things like spacewalks and other zero-g activities. I would expect a tourist needs to demonstrate they have the fortitude to: 1. Not Die 2. (Possibly) not lose their shit (any definition) These can probably be handled with a centrifuge after the tourist demonstrates surviving an extreme rollercoaster.