Can you see tonight's concert if your not vaccinated? It's outdoors.

I think it's up to the individual bands requirements

Saw a show in August, masks were optional, no need to show vaccination

Yes

I don't think you need to show proof. Probably have to at least try to wear a mask. Masks are fun. Idk why punk rockers don't embrace the masks more enthusiastically. I like them. I don't have to smile!