I disagree, I think that for a special anniversary (Milesone dates), like 15, 20, 25.. so on.. the kids SHOULD make a big deal about it. I have never heard of parents throwing parties for themselves, at least not here. It is always the kids of the parents that are throwing it. Even if they are 60 years old...

The little ones, okay.. I agree. But the big ones, I think the kids should definitely be celebrating in some way and doing something for the parents.

If I lived near my mom and her husband, I would be taking them out to dinner every year on their anniversary (or around the date). Same for my dh's mom. We would be doing something for her and her husband as well. I think it would be considered honoring them.