Similar features are planned for consumer routers, see IEEE 802.11bf.

If they make the firmware there's no guarantee they aren't still doing it just without a broadcast SSID going along with it.

Even old lead paint didn't have a lot of lead in it. A thin layer of lead paint with <1% lead does nearly nothing for WiFi signals.

We use lead for shielding ionizing radiation like gamma rays, but even that uses a lot more lead than you'd find in paint.

Not all "radiation" is the same thing.

There is a pattern called 'Pica' where kids gnaw on stuff, windows, ledges etc https://en.wikipedia.org/wiki/Pica_(disorder)

Apart from what the sibling poster said about lead (II acetate) having a sweet taste, little kids will put literally anything in their mouths. You ain't lived till you had to get dog shit out of a baby's mouth.

>It never quite made sense that kids were actually eating lead chips

You know that lead tastes sweet, right?