Any age you can afford to stop work and support yourself for the rest of your life in the style in which you would like to live.
It depends on nature of job. Some one be act more efficiently after retiring before 60 depending on job and fitness. Politicians and business men have no retirement till physically unfit.
In case of service holder there should be age limit for retirement as per perspective condition of the concerning society to uplift & build the generation.
In case of service holder there should be age limit for retirement as per perspective condition of the concerning society to uplift & build the generation.