Deciding between kava or THC will come down to one simple question:
"Do you just want to take the edge off, or do you want something a bit stronger?"
There's no right or wrong answer to this question. It comes down to the experience and feeling that you're looking for. For example, some of us might enjoy THC here and there but may find it too stimulating when trying to break the ice and socialize. Kava may be the better pick here since it can help calm your nerves and relax without getting too far out there.
On the other hand, you may prefer to go with THC if you're going to a concert or seeing a movie. THC is known to help appreciate people's enjoyment and appreciation of auditory and visual stimuli. You could go with kava, but it might not bring your experience to the next level.
Now, these are only some universal standards to go by. Some people may find themselves to be social butterflies after consuming a gummy. Others may want to feel clearer and more grounded when seeing a movie for the first time. The truth is that when it comes to any psychoactive plant compound, it's about discovering firsthand what these bring to you and where you see them fitting in your life.
Essentially, deciding between kava or THC will come back to the question, "Do you just want to take the edge off, or do you want something a bit stronger?"
But what happens when you mix THC and kava? With an edible, you will essentially get a two-phase experience. First, you'll experience the tingling sensation of kava as you consume the edible, followed by the kava's calming effects. Then, in classic edible fashion, you will feel the effects of THC (technically 11-hydroxy-THC, which is much stronger) melded with the kava.
Combining THC and kava provides its own unique experience. You may find that the kava can help keep the THC in check with its ability to slow down signaling in the brain. Or you may even find that the two together are even more potent than when alone.
Mixing THC with other psychoactive compounds should only be done by experienced cannassuers. What we mean is that at a point where you're familiar with THC, you know how many milligrams deliver what effects for you, and you certainly know your limits. Combining kava and THC is an avenue worth exploring if you find your tolerance is going up or you feel like your sessions are getting a bit stale.