So I'm trying to find a little more information on these marks and others of the same kind. I get that they are to designate certain things, such as 'new driver', 'elderly' and something else, but is using one required by law in all cases? If you're a foreigner who just received their Japanese license, can you get a ticket for not having a new mark sticker? Do you need one or two? What about the mark for the elderly? If they are required by law, why aren't they given to you when you first receive your license/reach a certain age?