>I arrive at the airport in a Lyft.
That costs money. Many people take the train or a shuttle or lean on a friend.
>I walk up to the security checkpoint checkpoint, where I show the agent my phone. They see my boarding pass with the green checkmark and send me to the empty TSA Pre line. I walk through the metal detector with no adjustments to my attire.
You paid for that TSA PreCheck privilege which, while not in the grand scheme a large amount, is technically something.
It's also beside the point. TSA PreCheck is the result of a careful plan:
1. Make everyone undergo an intrusive, invasive, and time-consuming process that provides little to no additional security.
2. Allow people to pay for the privilege of not going through that procedure.
3. Profit!
I don't do PreCheck because buying your rights is not something we should be able or have to do. It's a perversion that leaves us happy to pay for something that was commonplace until 9/10/01.