HAHAHAHAHAHAHAHA!!!! LOL LOL LOL
that is a funny question....
Ever see kids on those push scooters called "Razors"? well think of putting a tiny weed wacker motor on them.. bingo you have a goped.
Mopeds on the other hand are ridden like a motorcycle/bicycle, a lot heavier.. and are 500% safer than those little deathtraps... O sorry, gopeds... but then again, it is only as safe as the rider in both cases.