except at least initial the airlines will probably accommodate the people who don't want to get on the plane because it is a Max. Better a little problem of rebooking, than social media posts that will remind people hey they are forcing you on a death trap.
Whether it is or not, best not bring attention to the fact you might be flying on a Max.
That's fine as long as there is a flight between the same 2 destinations with the same airline in a few hours that doesn't use a 737max.
If not then what?
I can see the 737 being pushed to infrequent routes with minimal competition. If you want to fly from Fairbanks to Springfield, it's the 737 or nothing and you either fly now or wait 4 days for the next flight (or pay 8000usd for a 19h, 4 leg super combo...).
Whether it is or not, best not bring attention to the fact you might be flying on a Max.