That is absolutely a valid reason to regulate EMR, as interference is totally a thing if you have too many devices using overlapping frequencies, etc.

Unfortunately, France is making a big stink for the stupid reasons instead: https://www.reuters.com/technology/why-has-france-banned-sales-apples-iphone-12-2023-09-13/

France's radiation watchdog has banned sales of Apple's (AAPL.O) iPhone 12 after tests that it said showed the smartphone breached European radiation exposure limits.

The Agence Nationale des Frequences (ANFR) said on Tuesday the model's Specific Absorption Rate (SAR) - a measure of the rate of radiofrequency energy absorbed by the body from a piece of equipment - was higher than legally allowed.

I was just quoting what I read on Reuters. It said something about how the phones were exposing people to a little under 6 watts per kilogram of radiation, and that the legal level (5 watts per kg) is set 10 times below the level considered safe. But I didn't see a source on that article, and I'm honestly tired of researching right now. Whatever the reason for the legal radiation levels, this article's claim that

The move has revived discussions about the potential risks of cellphone radiation, a fraught topic on which decades of scientific research remains inconclusive.

is outright lying. Decades of scientific research has yet to show any negative effects from low levels of microwave radiation. I'm getting more and more pissed at the fact that the article doesn't contain the word "microwave." It's not called cell phone radiation.