The mythical pilot shortage, always foretold and forecast by people trying to sell something. The people who warn of a pilot shortage are the ones selling flight training, or employment counseling. Kit Darby of Air Inc, no defunct, sold a lot of courses and training materials by insisting that a pilot shortage was coming. He insisted for a very long time, and it materialized. Many flight schools did the same, until the economy collapsed and they failed. Some taking the large sums of money that their students had invested, with them.
There is no "pilot shortage." There will be no "pilot shortage." There has never been a "pilot shortage."
If you want to learn to fly, by all means do so, but don't do it under the false impression that a shortage will open the doors for you. Making it in aviation is difficult. It's expensive, it doesn't pay well for the first few years (decade, or so) of your career, and it's a very unstable industry.
Aviation is one of the leading economic indicators in any economy. Aviation tends to operate on a razor-thin profit margin. Corporations cut their flight departments at the first sign of trouble. Airlines furlough and downsize, and merge, and go bankrupt with some regularity. Flight schools close. Businesses go bankrupt. Many companies operate for a short period of time and then get sold off or simply go away. Aviation is not a stable industry. There won't be any "pilot shortage" to artifically stabilize it by guaranteeing job security, either.
Approach your training with your eyes wide open, and don't give in to the false prophesies of those who only want to sell you something.