People are irrationally careful when it comes to flying. And in this case even a rational person wouldn't fly a 737 Max. I'm sure the demand problem will be felt by the airlines.

Well, i am a normal passenger and wouldn't fly in one in the first place. I could tell the difference by the feeling of plunging from thousands of feet into the ground, it's very subtle, but even noticeable by the layman

There are now multiple apps that tell you which model of aircraft you are booking.

You can look up the plane your due to fly on online using the flight number.