The moment it is approved it with be mandatory, even if by that point it is only 10 percent effective at stopping cases, and it is irrelevant to health if you get a breakthrough case, unless you are over 65.
Do u even know what a drug is? Every medicine is a drug, even everyday painkillers. But it’s only called a drug if u don’t have permission from a doctor to use it or u use it to heal things that are already healed. Taking a vaccine and having a drug addiction are 2 whole different things.