We don't even know that. For all we know, Kid might actually have a better Haki than Luffy. He is a rival of Luffy for a reason. I will actually be surprise if he doesn't have Luffy's CoC ability. Oda has been plans for him and Killer.
we know for a fact that Kidd's haki is worse than Luffy's. he didnt know punch works on Kaido. something he should have known if he had barrier haki or even have knowledge on it.
so far he has shown no sign of FS either. heck we didnt even see any decent COO feat from him
as for AdvCOC: we dont have proof of him not having it BUT if he already knew this one he would have already used it against Hybrid Kaido. would be asspull from Oda if Kidd suddenly shows that he already knew AdvCOC yet he never used it against Kaido. and Kaido commented something along the line of "only a strong few can use it" which does lower Kidd's chances even lower.
and its hard to digest Kidd will get AdvCOC b4 getting barrier or something when COC is the most hyped and rarest haki
we should already get the memo: Oda is very stingy when its not Luffy. Luffy learns FS/Barrier/ID COA(now AdvCOC too) yet he doesnt even give Kidd Barrier haki