I saw you said there are going to be 70 people there. I don’t know what the rules are like in your area, but 70 people is a lot of people to have in close contact at the moment. And however many good intentions they have about observing social distancing and infection control, they’ll fly right out the window once the drinking and partying start - this has been proven depressingly true time and time again, especially in the UK. It’s a shame for them to have planned their wedding during a pandemic, but I think you’ve made the right decision. I wouldn’t be going either.