Disney+ Star Wars stuff

Late to the party, I've finally seen "The Mandalorian" and "The Book of Boba Fett" in their entirety.

I have to agree with the general sense that "The Mandalorian" is brilliant and the sort of Star Wars that fans deserve, rather than the incoherent, mishmashed, drivel that was the last three films. And yet, I have questions.

First of all, does every desert planet have Jawas? Did they just migrate from Tatooine or did they migrate to Tatooine at some point?

What the hell is up with Tatooine anyway? For a planet that's furthest from the bright center to the universe, it seems like everyone and their cousins heads out there for this or that.

Is it a requirement for someone in Mandalorian armor to learn to speak Tusken? Or are Mando and Boba Fett just special?

Tatooine is a desert planet, right? I mean, I've seen no bodies of water and "moisture farming" is a thing. So... where the hell are people getting the wood for planks and the Tusken stick weapons?

So Boba Fett. Wow. He's a crime lord who doesn't do crime anymore? How does that work, exactly? Though that's the sort of logic I'd expect from a dude who got punk-smacked by Han Solo and wound up in a Sarlacc pit.

So Luke is not the last Jedi and that's kind of an established thing when he's starting up his Jedi school, before he starts going into attempted nephew-murder and drinking blue milk from the source. So... huh. That kind of makes Rian Johnson's movie even more bullshit, doesn't it?