Let's not pretend. Time is the single biggest ingredient in investing, and it is the one thing you cannot buy, borrow or blag. Someone who started at 25 has had thirty extra years of compounding. That is real, and no strategy removes it.
But here is the part the doom headlines miss: at 55 you might still have 25 to 35 years of investing ahead of you, because a pension pot doesn't stop working the day you stop working. Someone retiring at 67 with money invested until they're 85 has a horizon longer than that 25-year-old's first decade.
And the alternative to a late start isn't an early start. It's no start at all — money sitting in a current account earning nothing while inflation quietly takes a slice every year. That's the comparison that actually matters.