My nephew, who used to be big into the extended Star Wars universe with the books and all that, said that it was addressed with Boba Fett in one of the books that he did use a straw. He also told me that they were once a race but are now more like a cult (cult being my term). Which, could baby Yoda become a Mandalorian or do they only "recruit" humanoid children for Mandalorian status.
If Disney's Rebels cartoon is supposed to be part of the official universe, why is Sabine able to still be a Mandalorian and be helmetless?
I think the armorer could make him a handy little carrying thing for baby Yoda out of some of that Beskar steel.
That was great as was him leaving baby Yoda with the food lady and saying to "watch him" and the next thing you know he's standing outside drinking his bone broth while Mando and Cara fight.