You are intentionally misinterpreting what I said, or maybe you do not know that some bands can be used by commercial devices. That doesn't mean you can do whatever you wish on any bandwidth you want.

But even in something as common as WiFi you still have regulations, like channel 14, which as far as I know only works in Japan by default. Other common restriction is transmitting power.

I’m not ”intentionally misrepresenting”, nor did I misunderstand — I was just being comically pedantic, because the absolute terms you couched your statement in are obviously not true, because a lot of personally-owned devices transmit radio and that doesn’t get you into any trouble whatsoever.