The jokes are very droll, but electric aircraft are clearly the way of the future for light training and general aviation aircraft.
At the moment, they're a little more expensive to buy than existing types, but as production volume increases and technology matures they'll become cheaper. They'll also be cheaper to own/operate and easier to maintain.
There's a market for nearly 100,000 light/GA aircraft in the US over the next 25 years. A major proportion of those - potentially better than a third - are going to be electric.
Textron - who own Cessna and Beech - bought Pipestrel at the end of April. That should tell you something about the way the market is going.