Coronavirus is 10X to 100X more lethal if you are exposed to it than flu is. You don't want flu, but you REALLY. REALLY don't want coronavirus. You are probably healthy and fit enough to take on the unknown unknowns that you encounter but you should limit your exposure to multiple threats simultaneously ... the limiting of exposure to hurtful attacks on your immune system includes the additional threat induced by the dysbiotic shock to your microflora and immune system induced by getting vaccinated for flu strains -- strains that you wouldn't otherwise be threatened by in a simultaneous multi-threat attack ... a vaccine must induce something like a dysbiotic shock OR there is no way to get the immune response ... this is why 3X as many independent ADULTS with serious responsibilities and full mental faculties evaluate the risk of being negatively impacted by the vaccine, coming down with something else [which isn't protected against by the vaccine] and rationally decide against getting a flu vaccine as those who decide to get the vaccine. Dependent children and adults are at the mercy of experts ... if you can avoid it, don't become dependent upon experts.