I get that there were books that people valued but honestly mando clones always felt so shoehorned. Jango was adopted, so genetics don’t really apply. Sure in legends he trained the clones, but they don’t have beskar armor passed down, they don’t have many cultural touchstones. Like I adore the Jedi, but if you gave me a story about non-force sensitives with no lightsabers trained by the Jedi and said they were Jedi I’d be disappointed to not get a Jedi story and that they wasted a cool concept
This has got to be my new record for how long it's taken me to answer an ask xD
I mean, in the movies/shows it's not even particularly obvious that Jango was the Clones' main instructor. In TCW there are mercenaries that were hired for that, and the Jedi send Shaak Ti to oversee the process, but there's no mention of this being a radical difference between the newer generations and the Clone 'veterans.' For all we know, mercenaries could have been involved from the start.
From what little we get in AotC, Jango really could just have been chilling on Kamino because it's safe and remote, and so the Kaminoans could have easy access to his DNA if need be. If he was regularly taking jobs for Dooku, like Padmé's assassination attempts, maybe he wasn't even on planet that consistently. I do think he was somewhat involved in the training, but a lot of it was probably automatized too (we see the Cadets training on computers) - and one dude alone obviously couldn't have been personally involved with all of the Clones' training. At the very least, it's not realistic to imagine that all three hundred thousand first gen Clones had regular interactions with him.
I wouldn't mind so much the case you described, but... that's not even what happened with the Clones. Nothing in the movies or the shows said "yeah, they're kinda Mandos," that was all supplemental material - because in the movies Jango himself wasn't actually supposed to be Mando. Mando armor wasn't that sacred cultural heritage yet, just some really good armor a skilled bounty hunter would be eager to get his hands on. But really, it's not even for any of these reasons that I mind the Mando!Clones fanon - I'm cool with Jango being in charge of their training and with being Mandalorian himself, by adoption or otherwise. What does annoy me is that Mando!Clones is made out to be a huge part of their identity when they were never written this way.
Rex and Boil had Mando symbols on their helmets as holdover from the early days of TCW when the writers were working a bit with the EU authors and drawing ideas from the EU. It never went beyond that and it all got scrapped by season 2 anyway, when they rewrote Mandalore entirely and TCW started to distance itself from the EU a lot more. Nothing else connects the Clones with the Mandos. I used to love the headcanon! But it's a headcanon, not something at the core of their characters. It's fanon, even.











