We can get virtually any ticket delivered to our smartphones, yet at my coworking space plenty of people myself included, OK so I am old, but most of the others are young, still print off their train ticket, boarding passes, and other tickets.
It’s the same reason that we still buy books, vinyl record sales are making a huge comeback, we still buy CDs, more and more people are doing art and other crafts. It’s the same reason people still buy paper notebooks when you could use Evernote.
We are humans and we like physical things, we like to hold the ticket, we trust it. We like to create with our hands and feel things in our hands.
Not everything is better in a digital version.