When should you start planning for retirement?
D000328:Adult; D002648:Child; D005260:Female; D006801:Humans; D007352:Insurance, Life; D007449:Investments; D007899:Leisure Activities; D008297:Male; D008875:Middle Aged; D009907:Optometry; D010934:Planning Techniques; D012179:Retirement; D012943:Social Security