One aspect of retiring that never seems to be considered is how many years you have worked before you draw your pension. In my opinion pensions should be personalised.
If you started work in a manual job at 16 and then worked until you are 60 I think you deserve to retire at 60. However, if you finished school, had a gap year, went to uni, went travelling, did a masters, did an internship, worked for 5 year, took two lots of maternity leave followed by a career break, work in a professional non physically demanding role then it would be right if you expected to retire later.
The real difficulty is the way the goal posts keep moving which is making it impossible to make an informed decision. I am in my late 40s and am now fully paid up for a full state pension in my own right. However, if I work for another twenty years what benefits will I acrue? My DH suddenly found his final salary pension scheme abolished last year after paying in for 24 years, who knows what he'll get at retirement age. I have also paid in to a final salary pension scheme for nearly 25 years. It has an online facility for calculating the benefits of paying in extra, only it can't accommodate those who change their working hours over their working lives(mainly women)or tell you the impact of promotion. So my last pension projection from work was based on my posion 3 grades lower and with less hours. Not much use.
An enormous issue regarding pensions is the lack of trust between citizens and state. When I started work pension age for women was 60, I now have no idea when I will be able to draw my pension. I would love to pay extra contributions into my final salary pension scheme and am lucky enough to be able to afford to, but at least if I invest in ISAs or property I know I have control over my money.