Life expectancy in Manchester/Glasgow in 1895 was 42 years,maybe it was all the rich food they were eating?
Check out what life expectancy was in other parts of the world at that time. Check out why the population of the UK was rising even though birth rates were falling.
Ordinary people in the UK benefitted from the empire, work in shipyards etc, and Scots were among those - no question.
Here is a question; Industrial(North) US 56.7 years
Germany 61.3 (had a pension system by 1895)
France 55.1
So,the benefits of working in a shipyard were?
As I teach; Population grew in the second half of the 19th century due to the implementation of clean water acts,improved medicine(and understanding of causes of disease)new Taxes on bathtub gin being introduced,taxes on soap and windows being scrapped.Factory acts banning kids from mines and mills until they could read,which made it less important to have lots of kids to work for you,so birthrate fell.In other words people were still living in she-yit but were healthier.BTW you do know a large part of the population in Scotland could not work in the shipyards because of their religion,don't you? Makes that a poor example.
Also the l/e in Glamis, a village outside of Dundee was 70, which would suggest that the people not benefiting from the union,lived longer