Considerable amounts of information stating possible health risks in exposures to microwave radiation suggest precaution and that doesn't mean using it like another technology. For sure it's a great business and convenient for users, but sometimes to use other options seems more adequate.
Cordless obviously provides benefits. However, are they strictly necessary? In almost any place you could find or install conventional phones to achieve the goal of communication and not always the message cannot be postponed. The same with Internet. Wireless has a great problem in relationship with sending data packets to the air because most of the time it's easy to read them creating privacy concerns. Wireless is also slower and less stable than wired solutions when it comes to massive data or the need for fast responses. There's an added latency, worst response.
Different individuals only use the smartphone for the applications, in plane mode with an offline operation. That way you have the tools in your pocket, more battery and privacy. To use Internet applications there are workstations ready for it, with better screen, keyboard, mouse, modem and overall response with another myriad of applications to launch.
In high-end applications, the wire is at every place because it has better specifications by far. Printed circuit boards are wires, right? Then, in these aspects, the most advanced technology it's not wireless at all. It's clear; the propagation medium is not an enclosed conductor and it needs extreme quantities of power to force it in that behavior. A radiation emitter goes everywhere and it's governed by the inverse square rule due to its omnidirectional nature.
The energy waste newly comes very high with so many chunks of radiation without finding destination. Another form of contamination with multiple sources that at the same time no one could ensure its safety at 100%. The keys to analyze any radiation exposure are distance, power —absorption— and time.
Conventional wires don't have these variables involved, and they are better also in this regard.