Today, I don't see much enthusiasm for lockdowns outside Europe, and agree we don't need widescale lockdowns. Our symphony cancelled two performances recently, well, OK, their choice, they also require me to show my vax card to enter, which is the only time I've had to show it other than entering Hawaii.
After seeing packed football stadia with screaming fans have little apparent impact on the spread, I doubt attending a symphony is much of a risk except it's mostly older folks.