Automated aircraft
As with all things, aircraft have and will become increasingly automated. In the future there may be a pilot in the flight deck but that pilot will increasingly be more and more redundant. Systems will evolve to exclude the pilot from nearly every decision. As such, the pilot of the future will be paid accordingly low wages due to the decreased level of control and authority. This is the way of all things of this nature; would an employee of the original Ford Motor Company have visualised his job (and 20 of his co-employees) being done by robots within 100 years? Automation will be the norm, with minimal and lowly paid humans in place to support it.
There will be other, as yet unknown, jobs available. Probably won't have the cachet of telling the pretty young thing at a party that you're a pilot, though.
The world moves on. When was the last time you had to get the stonemasons around to your modern house for some regular repairs?