simply because some of us don't think it's "coddling". I always love how if you do something for your adult children some how they won't be able to "handle" life. LOL seriously. If I take my 24 year old son to disney he's going to have a meltdown at work???

How exactly is the world going to kick their backside. My son handled the death of his father pretty well seems to be able to get out of the house by himself, pay his car note and work.
My kids are going with me on a cruise in May

are you saying because I can easily afford the bill somehow my sons will turn into irresponsible people? or should they have offered to pay part of the cruise?
Is that the measure of responsibility? lol
There is no "should" about it. Last night my sister and I went to dinner at Sullivan's steakhouse. great meal. she picked up the tab. I didn't ask her, when the check came she simply said "I got this". guess that makes me an irresponsible adult because I'm way passed adulthood and can certainly afford the dinner.
So I'll totally admit I find all these rules on what makes an "adult" really weird.
Does this rule also extend to gifts? If I give an adult child a birthday gift even if they can buy the item themselves, is that "coodling" them??
I guess I'm not that deep and philosophical, it's pretty simple for my house.
IF we can afford it, we will invite our children to vacation with us and pick up the tab. If we cannot afford it we don't. If they can get the time away from school or work they go. they don't expect us to do it and they don't seem to have suffered in the responsible adult department.
My inlaw's live in Lisbon, (well one still does) she invited us to Portugal for Christmas. I think she primarily she is getting old and her son (my dh) lost his battle with cancer so the realization that her family is more important than money is really apparent. they are paying for our airfare (we didn't ask them, I'm assuming it's simply a gift). I will most definitely be on that plane. I am waaaaay over 21.
I apologize for being a little "tongue in cheek" but I really never thought that there were so many ramifications for taking your entire family on vacation including your adult kids.
I know grandparents that take their entire family on holiday and pick up the big items, room and board and airfare. I don't think they view it as coddling, I think the simply love to get their entire family for a very short period of time once a year.
Absolutely nothing weird about that, I hope to be able to do that as long as i'm alive.