From an article recently posted by the Associated Press; "In the last year, they were more likely to be employed as waiters, waitresses, bartenders and food-service helpers than as engineers, physicists, chemists and mathematicians combined (100,000 versus 90,000). There were more working in office-related jobs such as receptionist or payroll clerk than in all computer professional jobs (163,000 versus 100,000). More also were employed as cashiers, retail clerks and customer representatives than engineers (125,000 versus 80,000)."
We've changed so much about our lives over the last 50 years (how we communicate comes to mind first, i.e. cell phones and internet), why wouldn't one consider the future of "jobs" may not be the typical 9-5 one.