they don’t glow from heat but they can glow by design: for safety reasons, some have lights that simulate glowing from heat. I guess the choice of image is a little curious, given the primary distinction between induction vs. traditional is, typically, the absence of external heat.
At risk of sounding dangerously stupid, what exactly is the safety concern? Given that induction is cool to the touch, it's not obvious to me how you'd hurt yourself (which is doubtless another major advantage of gas).
They're not cold to the touch once they've been used: the induction process heats the pan, but heat from the pan will transfer back to the glass. If you use an induction cooker for 20 minutes, and then immediately place your hand on the glass, your hand will be burned.
