You can to the same extent that you can access a smart phone on the go. You just have to remember to bring it with you. Given how often I "forget" my smart phone at home, the "access anywhere" isn't a huge selling feature for most things to me. While I do use web-based email, I tend to prefer things like paper tickets for events and paper receipts because I actually find them to be more convenient than digital. This is because having to have a smart phone with me at all times that could get lost, stolen, damaged, malfunction etc. and is a single point of failure in the event thereof is the polar opposite of my definition of convenience.

No one has made the argument that paper is without problems. Only that it has way fewer problems than digital. That, and that the businesses and shills that are trying to force digital-everything are evil monsters that belong in the same rung of hell typically reserved for murderers and people who talk at movie theatres.