Earlier quoted context omitted.
> It comes down to a persons personal risk. [..] Wear a hat and sunscreen. What's the "hat and sunscreen" protection against millimeter wave cellphone towers, that someone else installed on their private property near you? I'm not yet convinced the risks exist. But conceptually if there was a danger, there's no "personal risk" argument. We're blanketing the whole area around a tower with millimeter wave/5G, a person…
Mostly the protection is the inverse square law. Provided you're not holding the device next to your head the exposure is tiny.
Ultimately this isn't simply an issue of "personal risk." If there's no danger, there's no danger. But if there is and you live in a major city simply not owning a cellular device may only lower your exposure.