I was astonished when I looked at the actual age ranges last night for 'baby boomer', 'Gen X' etc.
Baby Boomers were born, supposedly, all the way up to 1964. So some of them are still only 58! And will have to work till they're 67? 68?
My kids in their 20s are in different categories (Y and Z, I think?) despite being only a couple of years apart in age and having all the same economic and social problems.
The biggest differences I see out there in the UK are sex-based inequalities, many of which are magnified as we age because of the way in which society has been, and is, structured. Women are much more likely to be expected to relinquish their resources, whether these be their careers, money for family, free time, energies, working hours, savings, potential pension money, care duties, volunteering, emotional labour, physical living space, and general largesse.
Edited for typo