Actually you're right. That's a perfectly good and reasonable point. If people want to go to the moon, they should be at liberty to do so. If you want to help them, perhaps you could donate money to the cause. Heck, let's make it tax deductible.

Just checking though - you're not suggesting using any of my money, or other taxpayer's money to send them, right? Because if so, we're back to needing one of those good old fashioned actual reasons again.