Hong Kong welfare minister Law Chi-kwong defends Carrie Lam’s decision to lower age threshold from 65 to 60 for HK$2 a ride on public transport

• Law writes on his blog those aged between 60 and 64 will exceed 600,000 next year and reach its peak in 2024, before falling to around 400,000 by 2040
• He describes the fare concession as ‘cost effective’ and says policy will encourage elderly Hongkongers to maintain an active social life