Exercising one's freedom isn't selfish. Selfishness is forcing other people to sacrifice their freedom in exchange for your idea of security.

Your health isn't my responsibility. My health isn't your responsibility. I own me. You own you. Look up the concept of self-ownership.

The fact of the matter is you wouldn't dare force someone else to wear a mask because you know, intuitively, that that would make YOU the aggressor. Have you ever attempted to force someone else to wear a mask? If you feel so strongly about the issue, perhaps you should consider it. Feel free to record your encounter and post it online. I'd love to see what happens.

p.s. Is the entire population of Sweden 'selfish' for not wearing masks? What do you say to the Swedes? They haven't worn masks or been locked down since the start of the pandemic.

Double p.s. your obedience isn't a virtue. It's a sign of cowardice.