Yep, usually once they all leave a nest with loft they don't try to go back. Mom will find a new safe place or just hunker down as their umbrella.
Usually I try to move a broody and her eggs in the first week of sitting to a large or XL dog crate on the floor and build the bedding up to the lip like a ramp. Once hatch occurs, and when given a choice, the mom will opt to go back in the nest for the night if the chicks can manage. Being able to shut the door to the crate after everyone is in for the night is useful in a barnyard setting where there is a concern for unsavory night visitors.
In cases where I could not move a broody before hatch, I try to provide a safe cubby hole on the floor for mom to use and they usually do.