This is one of the most difficult ideas to understand when you are learning about electricity. A good analagy to use to help understand the difference between current and voltage is to think about water flowing down a river. The more water there is flowing down the river the greater the current, and the same is true with electricity. The more electrons that are flowing throught the wire the greater the current.
Voltage is like the height difference between two ends of a river.
The greater the height difference between the ends of the river the faster the water will flow. If there was no difference in height between the ends of the river then no water would flow and so if there was no voltage no electrons would flow. So you see its not just scientists being awkward, current and voltage really are two quite different ideas.