Why Britain left carrier catapults behind

Why did Britain stop using aircraft-carrier catapults after helping to pioneer them?

With so few carriers, Britain could not sustain the system economically without relying heavily on American infrastructure.

Britain helped pioneer carrier catapult technology and later stopped using it. A small carrier fleet makes an expensive specialist support system difficult to sustain. France depends heavily on American infrastructure, while Britain uses American technology but tries to retain a support structure it can operate itself. Carrier technology must be judged with the training, maintenance, and industrial system needed to keep it working.