I'm not sure what you mean by that. In general I'm healthy. If you're implying I should wear a mask when flying, then the problem with that is that pre-COVID you would be seen as weird for going on a plane with a mask. I suspect it will go back to that status eventually if there are no rules forcing masks. Maybe that's the Nash equilibrium. An external rule can change the equilibrium to something that is better for everyone - including you.