Keep in mind I am not a financial planner or adviser. These thoughts come from my own analysis and thoughts about retirement investing. You can get personalized advice and suggestions by speaking with a financial adviser. I can't make your decisions for you.
The law in the United States is designed to encourage each working citizens to save for his or her own future. Through tax advantages, there are subtle incentives for investing in certain types of accounts. These incentives encourage financial literacy, boost use of the economic machine of the financial industry, and shift the burden of supporting the elderly from corporate pensions to the public. Regardless of whether you think this is a good approach to supporting a population with an expanding lifespan, this is today's environment. If you envision a future where you can do what you'd like to do with your life, unfettered by financial constraints despite a lower or zero income from work, you have to get on board with the concept of saving and investing for yourself. There's nothing stopping anyone for saving for their future by storing cash - whether in a mattress or in a safe. It's more beneficial to do something else with that money, however, so you don't lose purchasing power due to inflation and so you aren't exposed to a loss in the event of a burglary. Rather than hoarding cash for retirement, take advantage of the various incentives that will help your money grow. Because different types of retirement accounts have different levels of tax advantages and other benefits, it helps to know which should be the highest priority. Don't miss a great opportunity to allow your money to grow as strong as possible in any investment.