You say this like it's a "gotcha," but what exactly could somebody with no technical knowledge do about the microphone? If you're trying to say that if there were an equivalent to electrical tape but for the microphone, people wouldn't use it, then I don't even think you honestly believe that.
Also, it's bizarre that in a world that ratting has existed, you'd compare covering the camera on your laptop with a piece of electrical tape to paranoid schizophrenia.
Take an old pair of wired headphones with mic, cut the cord off, plug in connector. There’s better solutions, but that’s the easiest if you are nervous.
> paranoid schizophrenia
I made no such comparison
In particular, your claim is false for phone and tablet cameras. These devices do not have visual indicators of camera operation. Furthermore, the only reason for an industry-wide adoption of laptop camera LEDs was consumer fear of them. If that fear erodes, there is no incentive to maintain the hardware feature and no governmental regulations governing such hardware.
Yet nobody seems to care about them (unless forced to care by their employer). The exact same folks I see in work environments with the tape on the Apple laptops are the same folks with nothing on the phones/tablets (and previously mentioned mics, where as at least on iOS you always have a visual indication of that). If you really care about privacy, you learn the different ways to protect yourself. If instead you have a different motive, you instead just grab a piece of tape and call it done.
