The “Us vs. Them” mentality stems from our evolutionary need to belong to a group, but studies show it can lead to irrational group favoritism, which ends up dividing society instead of bringing us together. Steven HandelI'm wondering if/why someone who is not vaccinated (for covid) would or would not date someone else (having in mind from the outset the goal to marry, have a family, etc.) someone who is at present vaccinated? It's a fun question but also a serious question...