They might be older tech, but they’re pretty rock solid.

Either you’re lying, or you’re being pedantic. I mean fiat currency in general.

Uhuh…would you take Monero if it could never be exchanged for dollars?

Out of touch wealthy folks.

Unfortunately, that’s no guarantee. I believe some devices have been found to scan for any open WiFi and join silently so they can phone home.

People aren’t born on Twitter.

Barring that, something like a Google Voice number would work, too.