There used to be steam-powered and battery-powered cars in the early 20th Century. There was an Edison-Westinghouse war in electricity distribution.

Typically, a consensus is reached based on technical and economic limitations.

For example, nuclear-powered aircraft? You need shielding to protect the human crew. You also need a reactor that can survive a crash. That's why they use nuclear fuel for unmanned probes. There are no humans to protect, and it's a one-way trip.