But doesn't that risk there being a whole lot of partially-trained Force users out there who might be easily corrupted to the Dark Side? Or is that a risk the Jedi were happy to take?
It's not Luke's job the police the conduct of force users throughout the galaxy. It's not for him to make sure everyone that can make rocks float with their brain are all signed up to his academy and do what he says. Hell. he basically said as much in TLJ; the Force does not belong to the Jedi.
Of course, by recruiting children, you minimize the number of people who want to leave later, once they are old enough to understand that's an option. Being a Jedi during peacetime is a good gig.
That's not at all the point. By beginning their training while they're young you're able to build on an openness of mind that is crucial. With adults, or even adolescents, there's a lot of preconceived ideas and patterns of thought that they'd need to unlearn.
It also better enables the teachers to identify and manage cases of emotional instability and filter out those that are unsuited early. Without training, even a powerful force user's abilities will fade as they age. Remember, it's not a super-power, it's a discipline. A skill that require focus and dedication, even for the Sith. Just being angry all the time isn't enough.
That most people raised within such a cloistered system would be less likely to leave of their own volition is a by-product, not the intended outcome.
Yes but they're still force sensitive so someone like Palpatine could find/use them. I'm not sure if that is what happened with Maul but it would make sense.
Well that's where the dogmatic arrogance bit the Jedi in the arse, since of course they all knew that the Sith had been extinct for a millennium.
IIRC, back in the old Legends continuity, Maul was sort of a similar situation to Anakin, born on a world outside the Republic and therefore not on the Jedi radar.
That's still the case in canon.
Not that it means much: most of the galaxy is both outside the Republic and off the Jedi's radar (something like a million worlds out of
hundreds of billions.) Hell the Chiss habitually rely on force sensitive children for hyperspace navigation (until they burn out or the talent fades with adulthood) and it's not like the rest of the galaxy is up to it's eyeballs in wannabe Sith Lords.
I think people often forget that Sith basically ARE Jedi. They're an off-shoot sect that differ only in some fundamental tenants about the nature of The Force, outside of which they both use essentially the same skillset. There really aren't a lot of other games in town when it comes to training those
very rare individuals (only about 10,000 Jedi at any given time in a galaxy in the quadrillions!) to apply their potential to actual practical skills. That knowledge is mostly conveyed though experience and personal instruction--text books will only get you so far--so it takes one to make one.
The point being that it takes a lot to make a Jedi or a Sith, and good candidates are very rare to find. Hell, even among his own people, Maul seemed like a rarity, which is probably why Palpatine grabbed him (and why all of his other apprentices were poached from the Jedi.) Despite the Nightsister religion being based around manipulating the force (or rather some aspect of it) the only other force using Dathomirian we know of was Ventress (Talzin & Savage were not "natural" force wielders.)
I suspect a lot of this misconception stems for the EU's habit of trivialising this kind of thing, with every slightly disaffected force sensitive being a Jean Grey style Dark Phoneix in the making. In all likelihood an emotionally volatile force user left to their own devices is unlikely to be any more or less dangerous than a non-force sensitive one.
Mostly audio manipulation.
Incorrect. FPj has even talked about being called in to record his lines with next to zero context. Hell, they even brought Ewan in record those five whole words in TFA. The only audio manipulation was with Guinness's voice because, you know, he's dead.
I figured that was probably the case, it would be a lot of work to bring in all of those actors for such a tiny part of the movie.
It wasn't really any work at all. Most of them (Hamill included) were already professional voice actors so getting them in a studio was as simple as booking them through the usual means, and ADR recording is a pretty standard process for any film of this type anyway, and is routinely done remotely these days, so it's not like they'd have to fly everyone up to the ranch.