No-one appears to have considered one possible factor behind the veteran's card concept; that of the US support for their veterans. This used to give access to such things as military medical facilities and education (My knowledge is not very current); a significant benefit given the civilian cost of these services in the US. The equivalent services come free, or very much more cheaply, here in the UK. If one factors this in, all we are left with is a second DDS card. The only other use it would have is for claiming priority over civilian service users and are we really that precious?