honestly, if anyone should get ACoC it should be Kid
I don't know why Oda would give him CoC, reveal that in an arc where everyone's getting ACoC, and have him leave wano as the only CoC user who doesn't have ACoC.
While it wouldn't make much sense for him to get coating, as that ability seems to be based off one's skill with CoA(something Oda's yet to focus on for Kid), I think it would be really cool if he got his own variant of ACoC that fit with his abilities. Like why can't he combine basic CoC with his magnetic fields to amplify them or something?
Luffy can do something similar with CoA in gear 4th, so I feel like this should be possible