Yep, that's the main reason why i think the moon focus is a good idea, despite wanting humans on mars way more than the moon.
Yep. Let's be real here, if we can't get a small manned lunar base reliably working then there is zero chance Mars is going to work.
And let's not forget, Mars has zero financial or political/military benefit, unlike the moon.
Hypothetically, if China beat the US to landing humans on Mars, apart from the initial public embarrassment, no one is really going to care. It's too far away to care. It's too big to care.
If China beats the US to a lunar base however, all political and military hell will break loose.
Everyone can literally walk outside and SEE the surface of the moon. And there is actually quite limited room and locations to jostle for the best resources (water).
As much as I want to see humans on Mars, at this point it's essentially wasted effort that should be put towards a lunar base.