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Can't we get rid of the boarding pass altogether?

I mean, I'm always carrying two things around the airport: my passport and the boarding pass.

I think this can be reduced to one thing: just my passport, by letting the airport deal with boarding electronically.

>I think this can be reduced to one thing: just my passport, by letting the airport deal with boarding electronically.

What if you don't have a passport? Add a smartphone dependency?

credit card? driving license?

Not everyone is flying on a ticket they paid for.

And children don't have drivers licenses.