Btw, I would like to ask also if children need to have their own octopus card? Can an octupus card be shared by 2 adults an a child while traveling? I've red that you can use the card til -35hkd and there is a 50hkd refund after returining it. its -35hkd and i wont be reloading it anymore will it be deductable to my refund? tnx and God bless