"There are enough cabins for everybody"
This is a frame challenge.
If you have a civilization that can waste that many resources to ensure everyone can teleport anywhere they want whenever they want planet-wide, then what you're really saying is that everyone has at least two teleporter cabins in their homes, apartments, offices, stores, etc. What would be the point of even thinking about making such a banal trip more elite? Nobody's rich because nobody's poor. To make a point: it's the general utopic post-scarcity society.
I hate utopias. They're boring.
So let's bring what the devil inside me calls a "dose of reality" to the conversation. No for-profit company would ever allow that many cabins to exist without some kind of flaw that keeps people coming back. (This isn't an unreasonable suggestion: you've kinda described a perfect situation and perfect situations pretty much never exist.)
Limited cabins due to a limited resource, like unobtanium.
Cheap cabins wear out or require more repair than expensive cabins.
Limited transportation windows because there's only so much of the "ether" that can be in-use at any one time.
Limited destinations because, honestly, you don't want just anybody appearing in your home (or office, lab, secret lair, etc.).
Now we have the ability to create an incredibly profitable elite travel class! The whole point of elite travel is to overcome both problems and inconvenience (and, of course, to make you feel special. What's a good leader without a dose of narcissism, hmmm?)
The elite can own private cabins. The public must use "public transportation" in the form of street curb cabins.
The elite can buy cabins that will last a century without down time. The public is lucky to afford cabins that don't require multi-hour phone calls with automated responses to get to a representative who can't actually understand the problem and can't speak your native language anyway but is disinclined to escalate the issue to someone who might.
The elite get first-dibbs on transport windows. The public gets to stand patiently in the cabin, twiddling their thumbs and wondering why they can't be rich.
The elite get to go to more places than the general public. For example, the elite get to transport straight to their Disneyland penthouse suite while the public gets to teleport to a common landing site a quarter-mile away from their dingy hotel. In this aspect you can think of it as elites get to own cars and use garages while the public can only use buses and bus stops.
One more comment about limited destinations
One fundamental problem with a transport system that's as ubiquitous as you initially described is that any communication-and-control based technology can be hacked. That means a clever hacker can teleport to the POTUS' office, or to the guard station at Fort Knox, or to the breakroom at CERN, or to the hangars at Area 51... you get my point. Your system must in reality contain a great many limitations or the world and its stories won't be believable.
A general homeowner might not want a cabin in their home because they can't afford the tech that keeps trench-coat-wearing violin-case-bearing gentlemen with a somewhat Sicilian air about them from walking into their front rooms during the dinner hour to have a conversation about a certain loan made to a guy lovingly named "The Nose."
But the elite can.