I can remember (in the late 1990s,) the women at work who were born just before 1960, being really smug, and laughing at me, (and other women born after 1st January 1960.) Because the women born before 1st January 1960 got to retire at 60 and the ones born after it, had to work another 5 years. They actually LAUGHED, and mocked us.
So when things changed, and these women were made to work to the same age (65-67,) it made me laugh at them. And I am not even remotely sorry. 
Then again, I am all FOR women retiring at 60 (as we all work much harder in general through our lives than men,) but it has to be ALL WOMEN, not just the ones born before 1960. Many women born in the 1960s and 1970s, and 1980s, have worked much harder and had much more stressful lives than women born in the 1940s and 1950s.
No way in fucking HELL should anyone be working to the age of 70. That's a piss-take. Even being expected to work til 66-67 is a disgrace. People have very stressful lives these days, and many people are living on or below the poverty line.
The health of lots of people starts to decline at 60-63 or so. Despite some people claiming their great auntie Fanny who is 103 still runs a marathon a week, and their granny Annie is 111 and started work at 9 and has worked for 102 years.
The fact is MOST (hard-working) people are ready to retire at 60. Who the fuck wants to work past 60? Unless you have a blessed life, lots of money, and a very fucking easy job, you must have rocks in your head to want to work past 60.
Also, as has been said, many under 35s stayed in education til 21-23 y.o, and then had a 'gap yah,' whereas many women from the generation before started work at 16, and it was often manual labour, like a factory job. So you BET we deserve to bloody retire at 60!
And the comments from several posters about women wanting to retire so they can go on cruises that are funded by the millennials, just do one mate! Most women born in the 1960s and 1970s have worked fucking hard and paid a LOT of taxes over the years, so just bog off with your pathetic straw man shit. You millennials are funding FUCK ALL for us mate! 
All women should retire at 60, and men at 63.
I know that's not gonna happen, but I can dream!