[elric]

Depends on where you live. In my neck of the woods, burner phones are illegal. It's (nominally) impossible to get a phone number without getting ID verification. This applies to physical sims, but also to online services à la Twilio.

[Nextgrid]

Providing ID verification to the carrier/government is one thing, providing it to Google is another. I'm personally much more comfortable with the government or carrier knowing my number than Google.

[elric]

Sure, but that wasn't my point. My point was that it's very difficult to use a burner phone to bypass Google's data-guzzling.