i have a roosting pole in my coop 2-3 ft high and ive seen them fly up there but they don't roost. they are almost 8 weeks
They will when they're ready; they're still youngsters. Just don't let them sleep in the nest boxes. Lots of folks have to block them off when the chicks are that young so they learn that's not a place to sleep.
Happiness is when you can look at your chickens and smile....
Worry is interest paid on trouble before it comes due.
Flockwatching my little bunch of mutts, a favorite pastime.