I'm talking in-laws here, if you know their name, their spouses name and their kids names, you put all of them on, like "To John, Sandra, Gary and Jane" not just "To John & Family"
Its not something my family has ever done.. its something in our books that you do on cards for colleagues or friends who you know but don't personally know their partners or kids...etc, its an acquaintance thing... you certainly don't relegate your family members spouse of 10yrs+ and their children to 'and family'
Is it just me? Or does anyone else think its rude, and would you feel slighted if you received a card from your family or your in-laws that was addressed like that?