Unfortunately, the world is opt-out, not opt-in.
Unless you need a kidney; then we just bury perfectly good ones regularly, and let the donated ones get a bit more stale while we confirm the opt-in eleventy times.
For commercial texting in the US, it is supposed to be opt-in.
Of course, there are unscrupulous parties who don't respect this.
Unless you need a kidney; then we just bury perfectly good ones regularly, and let the donated ones get a bit more stale while we confirm the opt-in eleventy times.