Do what you feel is best for yourself and insist the same for those you are living with and around the most. Feel sad and sorry for those who take many precautions, yet still become infected. Hospital staff, grocery store workers, etc.
Let those determined to go about their lives as if nothing is wrong, do their thing. If something happens to them, it happens. Don't let it bother yourself one bit. I feel compassion when someone overdoses, even if they were an addict, because beating an addiction is hard. Taking steps to prevent being infected by this virus is not, and if you want to feel that it's just the flu, and no big deal, then accept the consequences if you end up being wrong.