I can see your point but if my parents planned this, I'd better smile and keep my mouth shut and make the best of it and play w/ sibs or other kids at the pool, or as an only kid, play by myself, and bit w/ mom/dad.
And, at least regarding the pool, some parents go on vacation just at a hotel the main focus is just the brats playing at the pool even if it is a shitty pool, and you go out to dinner at nite, that is it, maybe one 'event' like visiting a museum, monument, zoo, etc. If kids were at a cabin, you'd just walk around the woods, and explore, depending on the ages. Lunch at a local diner, maybe tag along shopping at the town. At cabin, maybe games, interaction, other crafts, or exploring games. Play games in the woods. I'd think having fun in a nice pool playing for 6ish hours a day would be at least a nice change from home.
What parents should do if they have the $$ is go to a hotel w/ a babysitter, and/or hire a nanny for the vacay (my ILs did this but they had 5 kids and did have money--seems like a good thing to save up for even if poor). Plan adult things every single day, let the kids play w/ the sitter, I mean if they complain about everything, this would be the same thing as just staying home for them, they have adult supervision, and then they can't complain bcz they would be doing the same shit they'd do at home. If they clamor to come w/ mom/dad, just say,, no...all you do is complain and you dont want to do these things. If they come, then say 0 complaining allowed, and follow thru.
Not sure what a kid would want to do for a 5-7-10 day vacation that parents might also enjoy a little bit. I mean, wtf do these kids think is gonna happen in Hawaii for an average income fam? It will be beach/pool time mostly. Ive been to Hawaii, off hand, I do recall riding a bike tour going down a hill, not sure kids of all ages are welcome on that, otherwise it was pools, bars, bars in pools, beach, if you have money its hang gliding, jet skis(not for all ages) I think I went snorkeling on some coral reef (also not child friendly IIRC), my rich ILs likely went surfing and surf lessons but the kids were much older by then. I think I went horseback riding--also not kid friendly depending on the ranch or kids ages--I think they had excursion for caves and glass bottom boats. Night was eating at nice restaurants--not Taco Bell--luaus, Tiki, native entertainment. Of course shopping.
Not sure there's an answer where kids would b happy and parents could be happy and also have money for it. Its a big ask for family to watch kids for a whole week every year, lets say, but At best, parents should book a camp for kids for 1-2 weeks, and go on vacation, no 'emergency calls' unless dead or break a bone, even then call Grandma.
Honestly, if I had kids, I'd send them to camp, book a hotel room for me and spouse, being away from home/chores, etc., and just fuck away the week. Go to diff bars and some nice restaurants to dress up for, maybe normal stuff like movies, a concert, even a bar band, and do all the normal things you cant do w/ kids, and since u never have time to fuck w/ kids in the house, I'd make a point to fuck my brains out. But that is me. Ha!