OTOH, motion sickness is often called "car sickness" for a reason, people who suffer from it only sometimes suffer on a bus, and rarely if ever on a train or a plane, so I'm not sure I would agree that "all transportation and tourism related businesses" are impacted. Also, doesn't dimenhydrinate work for your wife or kids?
Nausea is from Latin "seasickness", known for thousands years.
From my experience bus was the worst as you can't get front seat, even worse were backward positioned seats. Train and plane were great. Car in the middle, depend on road and driving style.
If I was on bus during childhood you would know by stops it made. We avoided that by traveling by car.
I experience motion sickness more easily on planes than on trains or buses. Boats are a problem too, in heavy seas.
In a large plane with no or very light turbulence the motion sickness doesn't brake through, it's only an uneasy feeling. In heavier turbulence, or in things like a small Cessna or a sailplane it gets worse. I haven't had to vomit in these situations since I was a little kid, but I do feel bad from nausea.
Funnily enough, I don't get seasick in heavy seas - even below deck without a horizon - but I will sitting at the dock with light motion. It's like my vestibular system "knows" to shut up when the chaotic motion goes beyond certain parameters.
Yeah, my wife and I were on a cruise once that was going through some VERY rough waters, and the swaying of the ship was making us sick. We took dimenhydrinate and it put us to sleep right after breakfast and we slept until like 5 PM. Lost an entire day.
There's a non-drowsy anti-sickness formula out now called meclizine, but I found it to be less effective.
