So past history tells us the 737 was marred by multiple fatal crashes cashed by bad rudder design.
Recent history tells us the 737-MAX has also been marred with some serious design issues relating to it's MCAS system, which have resulted in multiple fatal crashes.
That history suggests passengers should be wary of boarding a 737-MAX any time soon.
I for one will give it a few years before taking up that boarding pass.
https://en.wikipedia.org/wiki/Boeing_737_rudder_issues