I know it is rude and tacky to write adults only on the invite itself, is it also rude to have it on the website? I am probably going to do online RSVPs to the majority of the guests (we'll send real ones to any older guests) so I'm afraid people won't get the hint by the invite being addressed to Mr and Mrs Smith. Can I still add a card that says our website info and where to RSVP and write on that card 2 seats have been reserved in your honor or is that rude too? If it's rude I definitely won't add it... thanks for the help!