There's plenty of guys who have "learned all the ropes" they need to learn about RC flight by just flying electric. A guy can learn RC flight with a SlowStick or a glider and move up to a 4D indoor electric plane that does all the stoopifying tricks within a year's time. I will say that by going the electric route there is more to learn, more to know about equipment selection. The accomplished electric hobbyist becomes a student of electrical engineering.
For those who don't have a fascination with engines, electric is a great alternative.