Not only a problem for those who have retired but almost in all people who do not want to invest as soon as possible, thinking by work will be able to meet all needs including desires forever, even though they can lose jobs or if they continue to work, inflation will make all needs increase in price and slowly become it is difficult even just to meet the main needs because salary increases are not comparable to the increase in food and others.
This problem will increase in the future specifically for poor and developing countries, and also for people who do not want to invest, because only investments can help us to defeat inflation.