Crew demands

Did someone propose sometime “crew demands”?
Soon will come a war. I think we should have a regular army, and the regular army wants to eat and drink.
My idea about new workforce for a ship. Captain, gunner, sailors, minders I’m about this. Guys will stand in the solar system and defense from invaders, but how they can live in space for the infinity of time without demands? The army is always expensive.
And don’t forget the oxygen))

I think this is a good topic to train the crew to better handle the controls. A more trained team will charge the jump faster, dodge asteroids better, hit targets more accurately. It also makes more sense in first aid kits