Keeping childcare centres open longer to help working parents would come at a cost to the people running them, says preschool educator Samantha Pua. SINGAPORE: It is 7pm. The last child has finally been picked up, and the heavy front door of the preschool clicks shut. For many, this sound signals the transition to rest and family time. So when Workers’ Party Member of Parliament Mr Gerald Giam suggested extending childcare operating hours to 7.30pm in at least one centre per HDB estate to help