Costs of nearly everything has gone down since the 'good old days' as compared to a percentage of income. The car went from a commodity used only by the super wealthy, to a method of transportation for all.
Actually, the real-terms price of a car now is the same as it was 50 years ago.
And the real-terms cost of a reasonably high end tower PC is the same as it was ten years ago.
And the real-terms cost of a house now is markedly higher than it was 50 or 10 years ago.
And the real-terms cost of a mid-range phone is higher than it was 10 years ago.
So no. The "good old days" and "your gut feeling" about them is just the BS of an old man who regrets the fact that his shouty opinions don't matter in this world anymore.
Healthcare costs more now because we're treating more complex things later in life. Fifty years ago, you were old if you were 70. Now, you're old if you're 90. Those twenty extra years of life are due to the extra spending on medical care.
And I would be astonished if the real-terms cost of healthcare for a 20-30 year old healthy adult is any different to what it was twenty, thirty or fifty years ago.