Boba Fett goes maskless in public
For those of you who love the Mandalorian, but aren’t too familiar with the lore, here’s why Boba Fett doesn’t have issue removing his mask.
First, Fett is technically not a Mandalorian. He’s a clone of his father, Jango Fett, who was a Mandalorian foundling, raised by Mandalorians, fighting alongside them in the Civil Wars as a commando. Afterward, the new Mandalorian government disavowed him and claimed he had stolen the armor. After Jango’s death, Boba got his hands on the armor.
However, even if Boba Fett was Mandalorian, there are only certain sects that refuse to remove their helmets: the most notable being Death Watch, which were considered a terrorist organization by some. An offshoot of that group was Children of the Watch, which many Mandalorians considered a cult who followed the “true” way of the Mandalore. This is the group that Din Djarin was/is a part of.