Why is coke so addictive?

it used to be made of cocaine

no it didnt its coz its caffeine in and its not a drug but i just makes you really crave it if was a drug it wouldn't be legal

Actually.. they used cocaine leaves.. which were mild and not highly addictive. That's where the name coke comes from. But i think they stoped in circu 1960

Caffeine is a drug but a legal one. Not everything that's a drug is illegal...