Please give up seats to the elderly

being reading singapore seen and came across quite a number of post being the same topic about the same things " Please give up seats to the elderly " this is one of the post ...

what is the problem and issue over " young ppl " giving up seats to elderly ? i might look young and strong but who knows i injure my leg the day before? or i feel sick and dizzy which i cannot even stand ?

why sometime the elderly will show us a " give-me-the-seat-u-inconsiderate-young-man " face , do they know how i feel? SMRT put a sign " please kindly give up seat to someone who need it most " so who need it most ? how they know i am not the person who need it most?

why not propose a to the gahmen that who never give seat to ELDERLY fine $5000 ? or design a train that is onli meant for the elderly ... then there won't be any more problem ....