And that reason is the moon dust.
The moon dust is quite special as it is highly abrasive and sticks to anything because of the electrostatic charges.
It seeps though any gap and will wear down and render any mechanical machine useless in very short time.
Nothing soft (clothes, plastic) will survive on moon for more than few months.
The dust is a nightmare for anything non-moon and there is no help.
See one of the latest Real Engineering videos: https://www.youtube.com/watch?v=0k9wIsKKgqo
Dust buildup can be significantly decreased by weaving conductors throughout the outer shells and applying a current to it.
> Well, vacuum cleaners are a thing and could probably be exported to the moon to take care of any dust getting inside.
Specifically that last part.
They're the same statement once you think about it some or have some domain experience
What your comment seemed to suggest, was trying to preemptively remove all the dust.
Moon encampments need to be clean rooms with respect to the outside
It's a little like being underwater in a dome. If you see stuff from the outside inside, there's a dangerous leak.
Oh, except for that this dust kills you if you breathe it in, which water doesn't
Some of it stuck to the outside of spacesuits and/or robots when they went outside. Neither should be going beyond some intermediate garage area anyway, just like you don't usually park your car in the bedroom.
> And what's stopping the rest?
The airlock door? There's no wind on the moon, so it won't blow inside on its own.
> And where do you put what's captured?
Well, I'd assume that once your vacuum cleaners are full you'd take a moon-lorry and dump the lot into a nearby crater or something. If it's as sharp as advertised, the sharp edges might make it well-suited for use in concrete as well.
In any case you don't have to keep the entire moon clean, only the inside of the base. It doesn't seem to be a terrible burden to clean the suits and rovers after every expedition, more like something that you plan to do anyway because you want to keep those expensive things well-maintained.
Your assumptions about vacuum cleaners are fine. Do remember that it's sharp glass powder that immediately embeds, so that won't work
I see that you have imaginary beliefs about how much work cleaning is. NASA says differently.
Things that you guessed on the spot aren't interesting ways for you to argue.
It's not actually a valid comparison. Having water fall from the sky really changes the nature of rock dust
Dust on the moon is basically all what we would call obsidian glass dust (sharp) because it's made in asteroid impact craters