system
Given the following post, respond as if you're commenting on Reddit:
human
[Star Wars] How famous is Yoda during his time? And for that matter, why hasn’t anyone in The Mandalorian visibly observed the Kid’s striking resemblance?

I would think Yoda is pretty high-profile, being the Grand Master of the Jedi and head of the whole Council for a good long hundreds of years. Yaddle to some degree, too. Are there any supporting documents (Legends or canon) that point to Yoda’s profile as a celebrity, or lack thereof? Even remarks about the scarcity of his species? 

So far in The Mandalorian series, various aliens are shown finding that the Kid (aka Baby Yoda) is cute, but no one in-universe has come out and said, “WHOA! That looks like Master Yoda! That’s RARE!” Why might this be so?
gpt
The Mandalorian series takes place after the fall of the Empire. As such, it's been a good twenty to thirty years since anyone has seen a Jedi. Jabba the Hutt did, not too long ago, but he's dead now.

Even before then, the Jedi were rare - some ten thousand Jedi across the whole galaxy's trillions of sapient life forms.

During the Clone Wars, the celebrity Jedi, the face of the Republic, were Obi-Wan Kenobi and Anakin Skywalker. They're the only reason anyone really remembers what Jedi are, anymore. After the formation of the Empire, the Jedi are relegated to the dustbins of history. Remember that the victors write history, and the Jedi are, by that metric, traitors.

While Yoda was the Grand Master of the Jedi (by virtue of being the oldest), the more visible political station was the Master of the Order (by virtue of being elected by the Council). During the time of the Clone Wars, this was Mace Windu, who died during his battle with the Emperor and Darth Vader.

They type of character you're thinking of would have to be:

* At least forty
* A follower of politics closely enough back at the end of the Clone Wars to recognize someone other than just the major players
* Be able to tell one alien from another
* Knowledgeable about Yoda's species (or at least know that they rarely leave their home world)
* Careless enough to remark on it

Characters that we've seen have failed that criteria on at least two points.