I feel perfectly safe using public transit. 36,120 people died in traffic in 2019 in the United States. When there isn't a pandemic going on and I'm getting the annual flu vaccine, I feel pretty darn safe compared to driving
But there is an ongoing pandemic going on we can't go back to 2019. The new delta variant makes the vaccine weak. What are the chances this mutates again and again? It doesn't seem like a healthy approach for humans anymore.