I am off my bikes for a couple weeks because hips and shoulders were not designed to be slammed into the asphalt at 20 mph.
Although I do not desire or see a motorized bicycle in my future at 57 y/o, circumstances change. For now I am hiking to have some aerobic exercise. I just cannot visualize an e-bike delivering enough of a workout to justify the purchase. I will either hike or ride a bit slower with shorter distances. No shame in that. We age.