First ask US Social security whether they have enough funds to pay for reitrement of people. Also, reversing age means ID cards need to be changed every year and person can work longer thus creating Unemployment for the youth OR Will everybody be youth again......
If that happens then what about crowd at locals,buses,employment,food,home for shelter. This could be just beginging as there would many disadvantges and advantages as well. It is better the the way natural cycle is running.
