https://ourworldindata.org/uploads/2013/05/Life-expectancy-b...
In England and Wales around 1850 the life expectancy overall was around 40 because a lot of people died as children and dragged down the average.
For someone that made it to 5 years old their life expectancy goes us 15 years to 55.
People now definitely have a higher life expectancy but the difference isn't as vast as some might assume.