The FAQ below should explain it.

Can I buy tickets for my friends and family?

Yes. ‘My Network’ is a feature of your online account which allows you to manage the accounts of friends or family members. You can add up to 20 members to your online network. Once a supporter has been added to your account, you will be able to purchase tickets on their behalf, subject to availability. If a supporter gives you full management rights over their account, you will also be able to purchase ticketing products which have been reserved in their name (e.g. reserved cup tickets). More information on how to use ‘My Network’ will be released in due course

I have been emailed an e ticket, i will only be able to see if this works when i get home later. to be fair i was sorted out quickly this morning , i was in the same frame of mind as you regarding picking up a paper ticket. I was told that the physical tickets are ordered but they cannot confirm delivery, that is one of the reasons for accepting the e ticket

I have been sent a e-ticket, it seems to be working

Also got sent an e-ticket this afternoon.
Could have saved myself a trip to the ticket office if I’d of known. I’m pretty close to the ground so major issue but if I had to travel some distance to get to the ground I would be fuming. Still a pain in the arris.
Still don’t know why fans awaiting ST couldn’t have been advised that this was happening.
Obviously will be of zero use if don’t have an iPhone.

Got to the gate my ticket didn't work, another trip to the box office with them telling me they had sent me a ticket on the 29th I have never received one, I told her I was on the phone Tues and they sent the eticket. I was then told the ticket would not work because they are sending a physical ticket. The attitude was this was all my fault.
I emailed on Friday got another meaningless apology. I offered evidence of my ticket sent for the Huddersfield game to prove that there was no issues with my email and any non received tickets was due to issues at their end. They again stated that I will be getting a physical ticket, I replied this is the 5th time I have been offered a ticket in one form or another and they have either never arrived or not worked , I asked why would this time be any different, I am still waiting for a reply. I think I am done with club I will pick and choose my games for the rest of the season, i will not be using the auto renewal option

Cannot blame you at all.
It’s incredibly damaging to the club, all this.