In 20 years that’s when the real fun will begin when a large generation of commercial pilots, who are the bulk of the current system, retire. The decline and lack of CPL’s being issued is fairly disturbing in recent years.
I’ve seen some early examples of this in other countries with shortage on skippers, for those relying on cadet schemes to solve the problem, in that they get caught out in they can’t upgrade FO’s fast enough due lack of experience and extended training experience required for cadets.
Probably a good time in the next decade to kickstart learning to fly.