Right -- I'd already have thought places "couldn't" require people to be any kind of smartphone owner to participate in commerce, but I notice that more and more these days.
There are already a lot that require "verified" brands. So iPhone or Android only, maybe recent versions only, and not the hackable Androids like Graphene. Wouldn't be surprised if a more niche place unintentionally required an iPhone.
Are you saying that you think an event wouldn’t do this because they’d be losing android-owning customers? Or that they couldn’t do it for some legal or regulatory reason?