We're sorry to say it, but it's quite possible the COVID-19 pandemic will have lasting effects on dining out as we know it – at least for the foreseeable future. At the start of the pandemic, restaurants were forced to close their dining rooms, making takeaway and delivery the new norm. Now, as cities reopen and restaurants begin welcoming diners to their tables, there are likely to be a few things missing post-pandemic. Here are 21 things we think we'll probably never see in restaurants again.