For education/information purpose, I will stick my 2cents in here... There are E-Bikes and there are E-Assist bikes.

1; E-bikes, Throttle only for assist. Riding one is like riding a moped...
2; E-assist, PAS (pedal assist sensor) Riding one is like riding a normal bike, one must pedal to get anywhere but there usually is 4 levels of assistance...
3; E-Assist, PAS with throttle, Is like a normal bike one must pedal to get anywhere, or throttle and is like a moped...