I'll play the role of a naysayer (somewhat). While my coop set-up allows for access to food/water 24/7, I dont believe this is necessary. For me, its a matter of convenience. For my birds, however, having food/water at night is useless since they are roosting. I had a cam set up for a while (trying to catch a predator), and those birds never moved from their roosts until morning. If you feel you must provide water at night, so be it--but I can almost guarantee your chicks are not drinking it. By nature they are programmed to roost high when its dark, and they ain't about to overrule instinct to get a midnight snack or cool drink.
With that said, I agree with the principle point that our birds need adequate access to food/water. BUT, if these resoures are not in the coop already, they WILL need them FIRST thing in the morning...every morning.