Surely at some point, one of those children, possibly Esme, will question this lifestyle.
At the moment it's all fun and games, no routine, nobody telling them what to do, they eat what they want, go to bed when they want, constant trips away but what's the plan for the future.
They can't all be happy eventually becoming adults who are treated like children and only doss about waiting for the next surprise or adventure. This is where they would question why they don't have a life, education, friends, relationships, hobbies, prospects, independence and their set for life funds.