As a Waspi woman who is NOT part of any campaign, as I know there are too few women for it to make a difference re votes, I thought I would add a few comments.
There have been several changes to the state pension age.
The first in 1995, when the state pension age for women was made equal to that of men, so gradually over a number of years the state pension age for women was moved from 60 to 65.
Then in 2007, a change was made to move the state pension age (for both men and women), first to 66 and then to 67, but the change was very gradual.
Then in 2011, the October budget speeded up this change.
In my case, this change in 2011 gave me just 5 years notice of my state pension age being put back another year, and my S-i-Law, only 6 months younger than me, was put back 2 years.
It is this latest change that only gave some women 5 years notice, or in the case of my S-i-Law, 5 and half years notice, that is the problem (if it can be described as a problem).
When it came to MPs changes, it was decided that 5 years was not enough notice.
Also it should be noted that the State Pension is 'means tested' in that it is subject to income tax. Currently, the state pension is less than the personal allowance and there is no facility of deducting tax from it, so if you have a private pension from other employers, the tax code is adjusted to take the state pension into account.
Here it should be noted that as the personal allowance has been frozen, the state pension is going to rise above the personal allowance, but my understanding is that if you ONLY have the state pension, it will not be taxed (thus creating an anomoly), but presumably because it would be too difficult (not enough time) to start deducting tax on the state pension itself.
Personal pensions were introduced in 1988, I believe, and before that there was no such thing, and instead, the pension was just a company pension.
Since then there have been other changes to auto enrolment for example.
I have not campaigned because I know it won't make a difference. The country is more or less bankrupt, and they cannot afford to make up any 'losses', for too few votes.