He might not be able to print off. It's quite feasible that some people will go for a long weekend and have no access to a printer. Quite why tickets can only be sent out so late in the day is beyond me. Surely they could have been sent immediately after they were bought.
This is the problem with the new ticketing world that we live in. The club simply assume that everybody is up to speed with modern technology and automatically have access to the equipment to use it. It's putting a lot of the older generation off in an era when we need all the support we can get.