Realistically, it is for 99.9% of people who have phones. The 0.1% have to go out of their way to buy, with cash or crypto, prepaid SIM top-ups on flip phones, and by doing so they stand out like a sore thumb.

Back in the days of rotary phones, not only did the phone providers have your name, they even listed it, your home address, and your phone number in the white pages of the phone book, and everyone in town had a copy of it. Before the rise of microcomputers which enabled data tracking and robocalls, which in turn gave rise to demand for privacy from spam, having that information out in public wasn't a problem except for edge cases like domestic abuse victims or people in a witness protection program. The 99.9%, though, are still getting tracked no matter what, and I sometimes wonder if we've sacrificed the convenience and confidence of the phone-book age for an illusion of privacy that relies on anxiety.