I think that the man on crutches should get the seat because he looks like he is in a lot of pain. However, the pregnant woman' if she was to fall over, could not just injure her but also injure her un-born child. But if the old lady was to fall over' the consequences could be more serious. The man with the children might have to be getting up regually to look after his children so won't really need the seat. The two people around me might also give up there seat but they might have an illness that you can't see so they might need the seat. Overall, I think that the old lady should get the seat.