Now I don't think kids should make a big deal about anniversaries... But when you get to 50 years, then yeah, that's a BIG deal and it should be made into a big deal. I'm sorry, but I don't think 15 years really warrants having such a big deal made out of it. Also, men in general don't make big deal out of things, let alone their parents anniversary. I've had to train my dh that he needs to make an effort on my birthday... It took a few years, but he's doing it now, but can't remember his mom's or sister's birthdays, so I usually try to remind him (sometimes it slips from me too)... But you shouldn't hold that on your soon to be dil.