Typically, an aircraft is not grounded unless flight data shows that there is a significant problem with it. However, this was not the case with the Boeing Max 737. It was grounded throughout the world after crashes in Asia and Africa. This is because news of a crash can put fliers in Florida and around the globe in a state of panic. In fact, one news outlet has coined the term permanxiety to describe being in a constant state of panic.
While airplanes are generally safe, the news of a crash can spread quickly in the social media era. News may also be sensationalized or otherwise amplified by media sources looking to get clicks and views to is social media and other web properties. In the aftermath of the Max 737 crashes, Boeing has installed a software fix and has made efforts to educate pilots.
However, it has not reached out to the traveling public, because Boeing doesn't directly serve it. Instead, its goal is to make sure that airlines keep buying its planes. Therefore, it has little incentive to speak directly to flyers. Of course, it may be a good idea to do so in a world where the public includes the entire world as well as in an era where people may doubt the FAA.
If negligence is the cause of a crash, injured victims may be able to pursue compensation for their losses. The families of those who are killed in airplane crashes may also be able to pursue compensation on behalf of their loved ones. Negligence could consist of a pilot making an error or if the plane had a design defect that led to the crash.