I am a working pensioner and I am going to continue to work, in fact my employers have actively encouraged me to continue to work promoting me at age 65 and then when I reached SPA at 66 even though we were in lockdown my financial director took me through the pros and cons about deferring my SP ( I decided not to) paying for a financial advisor to help me with my private pension (non works) Payroll ensured I had the correct NI code applied so I didn't pay NI after pension age (apparently its not automatic) and have been very supportive, physically I am good health (although my knees are temperamental and my bladder seems to have a mind of it's own) but mentally I am just as sharp as I ever was, today was a normal day but included chairing a meeting with 10 department heads, working on a client presentation, working on person specs with HR, and a host of other things I have no problem with new technology either. And I am not the only one in my family to work past pension age, my late dad worked until he was 80 my DH retired at 65, took a volunteers role in a charity shop and now has a paid job running 2 shops at age 72 .
I am a 50s woman I did know in 2000 that my pension age was going up to 65 after the pensions act of 1995 and I did know in 2011 it would go up to 66, but a lot of women did not know this and there is real resentment and anger from the WASPI women who want compensation for the extra years worked with very short notice but who agree the the pension age needed to rise, to the back to 60s group on face book (along with others) who want the age rise reversed and to be honest (yes I know I will get flamed for saying this) a lot could work until 66/7 but believe they have been cheated and are angry they are having to do so especially when they had no chance of paying into a private pension when they were working age and I do understand some of their worries and concerns, however these people are so unrealistic in their demands the latest petition is to take the age back to 60 for men and women and increase the state pension to £380 a week, that is never going to happen, petitions have been organised before for both the increase of pension and the decrease on age and the government have already said no and they are not going to change their minds this will just fuel more anger
As for means testing the SP, the building blocks for that are already there, pre 2016 your state pension was more determined by your actual contributions, you could get more of you paid into the second state pensions (I did) less if you contracted out or paid half stamp, you can no longer do any of these, the new full pension is capped anyone with no NIC history or little NIC history pre 2016 will only ever get the the full pension for 35 years even though they may work for 50 plus, once you blur the line between contributions and payment, once the majority of people are all getting the same amount then it's easy to means test.