Perhaps before they ask the questions, there should a special category: If you have the money for retirement, would you....

If you work with someone above 40s of age, you will notice that most of them will have mentioned that they are tired of either: reporting to an idiot, forced to manage people, dealing with office politics, trying to write volumious amount of reports, etc. If they have the money, they would have quitted. So, framing the question with that starting will show you the true answer as most will answer according to their current financial conditions, which for most, could be better.