You need to think outside the box a bit and try to put yourself in someone else's shoes to come up with a scenario. In real life, not a shop, I found that my recently opened checking acct (for a shop) did not allow for me to have an online account and they were also not sending me paper statements. I had to keep calling to find out my balance. And I asked each person I spoke with if there was any way I could fix the issue. The issue for me is that I do not want to give out my cell phone number for double security as I do not use my cell often and it is a pain to go look for it and turn it on every time I want to sign in. My email is open and my home phone is 2 inches away. That is my real life issue in addition to my quest to make sure certain populations are not excluded from dealing with public companies. This and other companies I deal with have also had a cell number as the only method to verify who you are. I also like to exaggerate a bit when I call (not on a shop) to "complain" about these issues in order to make my point. And I so ask for escalation althou not using that word. So for these calls for personal reasons, not a shop I explain that only 85% of the population (I looked it up) has a cell phone so that leaves out 15% who might want an online account at their bank (or whatever type of company it is), also that many older people only know how to call their grandchildren on a cell and have trouble with anything else. I even threw in the notion that they may have criminals who use throw away phones so they do not have a consistent cell number but may still need a bank account but the cell number listed is no longer good as they threw that cell into a trash can or the ocean. Even you lost your charger and your phone does not always work. Sometimes I feel making an extreme case will not only lighten up the conversation but get the other person thinking. In any case if you think about challenges others may have with certain rules then you can walk in their shoes while using that scenario or you can say you were with your gram who has an account but cannot access it due to being non technological...but gram does have an email acct she knows how to use as email accts have been around since gram was much younger.
Anyway for those who feel squeamish about "silly" scenarios there is an out. In the grocery you can ask all sorts of questions about a veggie you never cooked before or about meat you are buying for a family member even tho you yourself do not eat meat. Granted this is hard in a small town where they may know you but to me those difficulties are counter balanced by small town opportunities to get large bonuses, something we do not usually have here.
If all else fails, thank you all for leaving me more opportunities to call the bank about failed systems.
By the way in the past month I have had three different large national companies add a choice of an email or home phone as the way to prove identity. Just by asking and explaining.