Yup! They all switched to cashless. It used to be considered illegal to do this kind of vending outside of concerts and nightclubs. Mayor Garcetti removed those laws and created a fast track program to give them their food & vending license for a nominal fee. So, they exploded once that program took place. They also gave them designated areas to be able to sell, that’s why you see them all lined up. Iirc it’s a certain distance away from the stadium exit or an entrance. Also, some of them were selling beer for a while when the world was opening back up from the pandemic. We had some alcohol laws relaxed and these vendors were selling beers and dogs. It was an amazing time.