I agree with your points. I believe in hormetic effects for boosting immune system. Therefore, I always walk in nature barefoot and interact with others consitently, including with animals. However, as covid virus is new and our system is not ready for it we needed precaution during the pandemic. Losing some friends and relatives concerned us. Now that I am vaccinated and my body has already dealth with it once, my concerns relatively decreased. Thank you for sharing your perspectives.