yea because you can't get funding for a bus ticket home
Do you know the main difference between absailing (or canyoning that Dave does), and mountain climbing? It is relatively easy and safe in one direction, and damn dangerous in the other.
Sending supplies to Mars is relatively cheap, because all you need to do is overcome Earth's gravity. You don't need much delta-V, because it does not matter if the supplies take a couple of years or more to get there. You need minimal thruster propellant, for course corrections only. At Mars, you do aerobraking and parachutes. The logistics are known, and we have the tech.
A crew return vehicle needs not only get there, but back as well. It needs nearly twice the delta-V, and that means a lot more than double the mass. As mass increases, price increases exponentially. Furthermore, if the return vehicle itself is crewed, they must spend double to triple the time in flight (in part, because the launch windows for the return trip does not occur immediately after arrival). That increases the difficulty of such missions exponentially, because right now, we're shit poor at maintaining closed systems.
I've told you I and thousands of others would be willing to risk the 30-60 years of life they have left, for the opportunity to go to Mars and find out what is there, even if it meant that there is basically zero chance of a return vehicle.
It is not about "funding for the return ticket home". It is about willing to take the risk to get there before we can create a bus that can take people home; and not willing to wait for a generation or three until we have the technical capability. (Some believe that either the practical aspects of the technology, or the human werewithal needed for just Moon landings, was simply lost after the three years of Apollo missions in 1969-1972; and that it means that unless we go to Mars "early", like Apollo missions did, we never will. That is a factor as well.)
I think you are ribbing me (if you are, don't; I don't understand English well enough to get that right -- my English skills are technical, not figurative/metaphorical), but it is downright stupid to
assume that a return ticket is somehow a sensible requirement just because you yourself would not want to take the risks. It is much more about it being worth the risks, and accepting no return as one of the costs, for early access. Considering the tested IQ range and personality assessments of the applicants, I'd be very careful about calling them stupid or reckless, either.
Now,
impatient is a more debatable term. Personally, I don't think you can call someone impatient just because they want to do something instead of waiting to die first and their grandchildren or great-grandchildren to do it. It's just not the same imagining that your distant descendants (especially if you know you have none) doing something interesting, because it would be "impatient" to try and do it yourself, even with considerable risk. Staying "safe" at home is a 100% risk of death as well.