I let mine do their thing. After a day or two after hatching the mama hen usually carries the into the yard.
I let nature do it's thing. I separate my hens until they hatch. After that I put the nest box in the main coop. Momma will keep the other hens away. I noticed they all seem to take their babies outside around day 3. They stay close to the back side of the garage for a few more days and then momma leads them to where the food is. Some of mine are confined and other are free. I never had any issues this way albeit this is our first hatching season. $ hens hatched so far with 3 more sitting on eggs. These Standard Old English are excellent brooders/mommas