I suspect AIBU, but its safer to vent here than elsewhere.
Lots of backstory which I won't bore you with, but effectively elderly DPs have asked us to drive them somewhere which is 2hrs out of our way whilst we are on holiday.
I phoned up a local cab firm and got a great fare offered of £40(its not a 2 hr drive, it's just because of where we are and where we want to be) . They ummed and ahhed and said what a great expense £40 was. I would happily pay it myself as we have limited time, but it seems a bit silly to offer as they seriously have loads of money, but just can't seem to get their head around the cost of things.
I know that I should just be the bigger person and suck it up as they are extremely generous to us, and in the end after speaking to them, we've come up with a solution that means we'll only be 1.5 hrs out of our way . But I guess I'm just annoyed about the generational thing - they don't seem to appreciate that we have very limited time off and we're already going to be spending about 7 hrs travelling with them the day before, so it's not that we won't be spending time with us.