If there is a way, she'll find it. They'll exploit the duck out of the airline baggage allowance- Ben will never not look like a Sherpa at the airport. Then they'll book the cheapest Airbnb possible despite it being up a hundred flights of stairs with no banisters.
They won't do anything cultural or unique to wherever they are, they'll just go to free soft play places and instagrammable parks. They won't go to any cool restaurants, they'll buy packet ham from the local shop. Perhaps they'll splurge on gelato on a couple of days (but they'll claim they had it every day) with the flavour picked specifically to match her nails.
A typical person would look forward to a holiday for chilling on the beach, not knowing what the time is, and it always being a good time for a cocktail. Even with small kids you might look forward to getting them to try new foods or see new sights you wouldn't normally see in the UK.
For her, a holiday is nothing but a box ticking exercise for her seasonally curated Instagram. She does nothing different with her kids to what she normally does at home with them, it's just in a place that has more palm trees.