Yeah, with my son due any day now, my SDCC plans were decided for me a while ago, but with that being said, I'd be worried about going this year.
Having experienced the PPE $hitshow that was Star Wars Celebration back in May (when it came to mask enforcement), and factoring in the current variant, there is no way SDCC is NOT a superspreader event. Some 2019 Saturday Hall H wristbanding photos popped up on my TimeHop a fews days ago and freaked me out. Tons of people right on top of each other for hours. Nuts.
Be safe everybody!!