The thumb rule for retirement planning is - the earlier you start, the more you save. However, with age, your priorities change too. So, you need to factor in the cost of living in the present vis- a -vis future, inflationary pressures as well as healthcare costs. It is not about the "quantity", it is more about the "quality" and your future needs. Retirement planning has its pros and cons. It is upto you to choose wisely.