If those people who don’t “wan to use a cell phone, then they are free to suffer the consequences of their decisions. No need for society to bend to their whims.
On what criteria are those barriers raised? Those decisions are being outsourced by states -- which (democratic) societies elect to act in their best interests -- to monopolies that have none of those responsibilities. In fact, as your comments illustrate, market pressure and competition provide neat justifications to avoid those responsibilities. They lead to a race to the bottom, not the top.
If you can’t for some reason use a smart phone, then yes the college should offer assistance just like most colleges offer assistance for people with disabilities.
I agree that accessing government services, banking, using public transit, putting something in the mail, etc should not require a smartphone.
If you have the means for a smartphone but choose not to get one, then you’re choosing to live in a slightly anachronistic fashion. Nothing wrong with that, but you are presumably making an informed choice to live that way.
Some people don't want smartphones. Some people can't get hold of them. They are both getting locked out of basic societal functions.