Do you think it is or is not okay for a restaurant to charge a fee for bringing your own birthday cake, known as a 'cakeage' charge, similar to a corkage charge for bringing own wine?

Do you think it is or is not okay for a restaurant to charge a fee for bringing your own birthday cake, known as a 'cakeage' charge, similar to a corkage charge for bringing own wine? Published on 7 April 2022 → Survey conducted on 7 April 2022 on 4044 GB adults