It also does not take the place of a motorcycle. I had a Kawasaki KZ650 for years. It was a lot of fun to drive. It also had a top speed of 125 mph.
Even that was not fun to ride for much more than an hour or two. However, I can see these E Bikes taking the place of GASOLINE powered scooters/mopeds. The same reason battery operated outdoor power tools(like my hedge trimmer) replaced my former 2 cycle gas hedge trimmer. THEY ARE SIMPLE. No ethanol gas to deal with. No oil filter. No air filter. No spark plug. No carburetor jets to get plugged. No fuel lines getting dissolved by ethanol. No magneto. No recoil mechanism. No noise. They do not make your clothes stink when you use them. You do not need hearing protection.
There is almost NO MAINTENANCE on these E Bikes. Charge the battery. Put air in the tires. Oil the chain.
“Oil the chain.”
Or get one with a Gates carbon belt drive and an internally geared transmission, and forget maintenance almost entirely.