Let's say you are a rising band from America, invited to a prestigious music festival in the UK. You are definitely going to get a lot of exposure and publicity

Let's say you are a rising band from America, invited to a prestigious music festival in the UK. You are definitely going to get a lot of exposure and publicity in your performance AT the festival. Now, looking at your excellent performance, a few local bars invited you for a meet and greet, small performance, chilling with fans. Wouldn't this be great for the band? Exposure with international fans!! This is great for the bar too...raising their profile in their city. Now, since you (the band) are a law abiding person, you decline any payment for those meet-and-greet events, because your work permit doesn't allow it. Awesome! Good for you!! But because it is a bar with limited seating, they have cover charges for people coming in after 10 pm. Note that this money is not going to the band but it is going to the bar. Should you (the band) be disallowed to enter the country and perform in the UK festival in the first place just because a fucking small-time bar charges entry fee?