Construction Worker Dubbed Hero After Saving 3 Year Old Hanging from a Ledge

A Singapore construction worker has been dubbed a hero after a video was released showing him saving a 3 year old girl hanging from a ledge by her head.

A passerbyer saw the girl, whose head got stuck in a railing, hanging from a balcony.  The passerbyer called for help.  Two men tried to get to the girl, but couldn't climb the two story building.  A construction worker saw this, and scaled the building, reaching the girl.

Once the girl was freed, he promptly returned back to his construction work.

My question:  Where were the parents?  Why was a three year old unsupervised and only noticed to have been hanging from a railing by someone passing on the street?