There is a huge difference imo with etickets over paper ones. As far as paper ones go, it is mandatory to have the physical ticket; lose it and can work out at a minimum a hassle, at worst , expensive

With an eticket there is a chance of needing to show it; showing it can be as simple as opening the laptop and opening the document , or just have a page printed out ; if one loses the printout, not an issue

Not only that, can easily purchase a ticket and check in for a flight close to departure time

etickets are a lot less hassle than paper tickets and definitely not imo just a benefit for the airline