What an interesting thread.
My wife found out she was pregnant in late February 2020. We became hermits once March rolled around. No family gatherings. No restaurants, no non-essential trips outside the house. Definitely no playgrounds for my almost 3 year old at the time. Her parents thought we were crazy (they are Trumpers, to paint a picture). My parents were also very cautious, and basically mirrored our behavior.
Fast forward to end-of-summer 2020, and we basically said "screw it." Why? Our kid who was sociable, brave, talkative, and just an absolute sweetheart started getting weird. Spending 6 months locked in the house with no outdoor play with other kids did her no favors. At that point, we figured, lots of other people were living their lives, what were we afraid of? By then the stats were clear that it mostly impacted older, fatter folks with health issues, so we figured we'd take our chances at that point. In January 2020, we had enrolled our kid in preschool for the Fall of 2020, and we decided to follow through with letting her go to school. My wife was late in her pregnancy at that point with our 2nd, but to us, our kid's development was worth taking the chance. It was the best decision for us. Our kid has continued to love school through the years (we have sent her to private schools that remained open), and our 2nd kid has been a blessing as well.
Basically we've been business as usual since the Fall of 2020. I even went to a 50k attendance rock concert last summer. Was a blast. We've caught COVID a couple times, a flu or two, and RSV this last fall. None of that is fun. But at this point I feel pretty strongly that if you want to live a cautious life, do that. But if you want to go buck wild, do that too.