Growing up my family could pile into a van for a 2 week road trip or Disney vacation every summer. My grandparents were still working at that time, grandfather was a small business owner mechanic. Grandmother was a part time bookkeeper for a non profit.
To have that financial independence today, I would need triple my income, or my wife and I would need to double our income.
I figure a decade+ of real wage gains across the economy would approximate that. Maybe not for me personally, but for the average.