[The content of this article has been produced by our advertising partner.]For a growing number of Hong Kong millionaire respondents, the mainland Greater Bay Area (GBA) cities becoming part of later-life planning, from healthcare access and living space to retirement lifestyle. Yet many have not fully worked out the financial demands of maintaining a life across Hong Kong and mainland GBA cities, according to a new OCBC Hong Kong survey.According to the bank’s “OCBC Premier Banking – Hong...