Forex traders can trade forex market forever and the old and the retirees can do business trading forex market. The old one can even trade in the forex market trading business. Forex is an easy business for those who can do money management and for parents, there may be age restrictions, because I often see people getting old, their thinking ability weakens. in the forex business we have to think hard, because many things we have to learn. so I think depending on age, if too old may be difficult for them