Unsure of how I should be feeling here

MissAdventure

It's a bit much, expecting the family to want to go away with you every year for the rest of their lives.

Nice occasionally, but I don't think people need to be held to that tradition.
As the grandchildren get older, things change, and so will your family's choices about where to go, and what to do.

I also wondered if the situation may have been altered as the GC are getting older and want different sorts of holidays. If its been since around 2015 they must be quite a lot older.

Is it possible to take a different approach and say that you realise after talking to them times have changed, which ways would it work out for everyone to meet up in different ways? If you cant stay at theirs, then stay nearby.

When you say you ‘brought it up’, how exactly did you put it?
Maybe you didn’t make your feelings plain, or just mentioned it lightheartedly to avoid upset.
I wonder if your family would be surprised to see you talk about ‘upset’, ‘excluded’, ‘insult to injury’ or ‘annoyed’? Perhaps they have no idea how much importance you place on this ‘tradition’?
Just another example of how actually talking about things can save a lot of upset and bad feeling.

It sounds as though they now want to go abroad with friends.. that sounds quite normal.. why don't you arrange a family get together for a special event and include their father.. maybe that could become an annual event if you like tradition..

It's a bit much, expecting the family to want to go away with you every year for the rest of their lives.

Nice occasionally, but I don't think people need to be held to that tradition.
As the grandchildren get older, things change, and so will your family's choices about where to go, and what to do.

Family “traditions” can be fraught with a lot of emotional baggage.
Just waiting for the Christmas threads to start!
You have a choice- say it’s a shame but never mind and nobody gets guilty or stressed; feel aggrieved and make them feel guilty; plan ahead for next year, suggest something joint or overlapping so you have some time together and some time on your own: shell out ££££££££ for a joint family holiday at your expense.
I love my AC dearly but would not want to necessarily spend my holiday with them as they are much (500%) more sporty and physical than I am , and IMO the only multigenerational holidays which work are where there is something for everybody - even NT houses!