So this is the place to talk about The Mandalorian right?
I will try to keep clear of major spoilers, but I am going to talk about one light spoiler, which is the explanation over Din's whole helmet creed.
We finally got to see Din standing beside other Mandos that were not part of his clan, and much like in Clone Wars, they were perfectly happy to remove their helmets. It's revealed that Din was unknowingly a member of a splinter faction that left Mandalore long ago, one that follows the ancient ways of the Mandalore, and in which one of the tenants it to never remove your helmet around others. When I heard this, and saw Din fighting alongside the Mandos with their own armor, something really clicked with me. The other Mandos (Nite Owls) are wearing more, I guess you can say, "modern" combat attire with high mobility. Thinner platting, sleeker helms, no overarching ornamentation, with the only designs being clan based paint jobs, almost like face paint. To go along with the fact they are soldier gear, the helmets are the same shape for each gender, like a standard uniform, like a modern combat unit. Din, by contrast, has more bulky, heavy, and ornate armor, inset with leathers and a small cloak, and has it's own look that is unique from other Mandalorians.
So what am I getting at? Din is basically a "Mandalorian Knight". His armor is basically Beskar Plate Mail.
When he starts out he has barely anything (Squire), only the helmet and doing odd jobs to protect his people, but through his actions he was given a full suit of armor all his own (Knight). He is to carry out a quest, but takes someone else under his charge. As everything happens, he returns and earns his signet (Crest), thus making him the leader of a "Clan of 2" (Lordship). He is now on a quest that honor dictates he must carry out at all costs.
Even going back to the old episodes, I didn't even notice the styles of The Armorer with her ornate helmet, fur cowl, and such, which gives it a very medieval vibe. It's all clicking together.