Concert and theatre venues in the US, mostly locked into exclusive agreements with Ticketmaster, practically require a smartphone running the Ticketmaster app. You can load the tickets into the Apple and Google "wallet" apps but you have to have the Ticketmaster app to do that. In the past year I've had to pretend to be a confused elderly person and beg box offices to get me printed tickets because I don't want to load the Ticketmaster app. Eventually I'll have to buy a burner device, assuming I still want to attend live events.

Ah, perfect! One question: is Ticketmaster rejecting non-"Big email providers" ? I suspect they do, due to bots (wouldn't it be the same with Tinder, etc ?)