To justify it, there’s the SPF issue. When everything is online, then any failure in the chain between you and the target URL breaks it. Phone doesn’t work for any multitude of reasons, no internet access, et cetera. Printed matter is very robust.
Yeah, if I'm traveling, especially internationally, I'm going to probably have a printed backup of my itinerary, any pre-purchased tickets, etc. I absolutely don't want to be in a situation where my phone goes out and I don't know where I'm staying that night.
I certainly don't obsessively print things but I don't work in an office and I probably want to print at least a few pages in a given week.
