True, but I don't think BFR is ever meant for the masses. And airplanes, which are gentle but can be uncomfortable, are barely for the masses (in 2015 only 45% of Americans flew on a plane).
My grandma isn't travelling on a plane 12 hrs to anywhere. Long haul travel is more for the youngish anyway (think baby boomers). And my parents would take a 30 minute roller coaster over a 12 hr flight even if that meant using a puke bag every time.
At the price point, I imagine it won't be as competitive as a business class fare, which 99% of people will choose over 30 mins of non-stop barfing. No?
If you can bear with modern air travel today, the process, the rush, the waiting, the hassle with luggage, and worst of all being cramped in little seats with hundreds of other people around for really long periods of time, then I think you will probably be able to handle the rocket. The devil is in the details though.
Regardless, not only do I think I would I appreciate the shorter, more violent flight more as I got older, I would also appreciate the roll of the dice that if anything goes wrong we just all die instantly. Not a bad way to go, really.
Ever been bobsledding? I question how well even a fit adult deals with G forces that high. I consider myself pretty fit, but I found my experience at 4Gs to be completely unexpected. I could barely keep my head out of my lap. Sure, it was fun, and I didn't die, but they would not let the elderly, those with spinal injuries, or pregnant women ride a bobsled even for 90 seconds.
To that I would say the G-force strength and direction should be predictable, known even when they are designing the seats before building the rocket. So the passengers should be in an optimal position where they don't need to hold up their heads against the Gs but are cradled by the seat. I think that is very different from the bobsled analogy where the G-forces are changing intensity and direction all the time and you are not in an optimal position.
If the G-forces are unpredictable, well something went really really wrong.
But you are probably right in that there will be more medical restrictions than there are now. But someone with a spinal injury, or who is very pregnant, or very weak from age probably isn't going to be flying in today's aircraft either.
It's surprising (to me at least) that it's not always instant. For example on the space shuttle Columbia, the astronauts went unconscious after a few seconds as the spacecraft was tumbling and breaking apart [1] but it's plausible that they could have regained consciousness if they survived the violent episode inside the shuttle as it broke apart.