My question exactly. If the point is to exercise then what good is a motorized vehicle? I can see if it’s for recreation or transportation. That said, I have not encountered one but I imagine they don’t make a lot of noise to give you fair warning.
They don’t make any noise. Ours has buzzer horns that you can use to warn others of your presence..............
You get as much exercise on an e-bike as on a regular bike, you just go further, assuming you pedal and don’t just lean on the throttle. On a non-e-bike, my typically ride might be ten or twenty miles; on an e-bike I’ll go forty miles. For me, it’s much more fun.