Most people love to ride rollercoasters. These people enjoy the excitement of the up-and-down, speeding forwards and backwards, plunging earthward from great heights adrenaline rush. These people are crazy.
A person who suffers from motion sickness does not enjoy such things.
But a person who hates rollercoasters also is a person who doesn't like a lot of change. They like things to stay pretty much the same, no surprises, no real adventures. Such a person could be considered boring.
There has to be a balance. Say, one rollercoaster hater to ten rollercoaster lovers. Yep. That must be the ratio.