Ehh, I probably would let my kid too

Kids get tummy ache, could be because of the heat, could just be too much ice cream or she’s been eating too many sugary treats in one day! So long as they haven’t been sick or got an upset stomach toilet wise .. what else do you do on holiday if they seem fine the next day? A splash in the pool isn’t gona hurt her or anyone else!
I do hate this ‘making memories with my humans’ .. you are literally on a beach at sunset for Instagram content

her posts don’t sound like it’s been all that dreamy to be honest. Perhaps the reality of a long haul holiday to a very hot country with two young kids & no partner to support you. She’s not known Jess for very long, I imagine it’s quite different to having David with her. Least she’s honest about it I suppose!