If you think back 15 years, there were 3 -4 pilots working in the cockpit, now only 2 and their workload has been drastically reduced.
Don't get too carried away with the extrapolation and the sales brochures , over 20 years ago we were already down to 2 pilots on the likes of the 744 (any extra was, and is, down to crew rest requirement)...and guess what? So has every airliner that has followed including the likes of the 787 and the A350...and no, I'll bet the workload hasn't been reduced at all.
if i did become a pilot, how long would i have in the job before automation and computers take over a pilots job?
The jobs going to be around for IMHO 50 years plus, the problem is the T&Cs, so please don't ask me what you will be earning!!!