They’re not struggling to fill slots due to lack of experience. The economy isn’t crumbling. They want to raise the retirement age so more people will die before they can start benefitting from the pension carrot they dangle in front of you your whole working life. Nothing more. Nothing less.
They tell you to pay into it with the claim you’ll get to live the life of leisure in your golden years. They spend your money for their own benefit and hope you die before you can claim it so they don’t have to pay out your contributions.