It's completely bonkers. I don't understand any of it and while it's each to their own with how you live your life and Content Baby will be oblivious to it all at the minute, I hate to think of the impact it's having on her older two. Even if her and Matt do week on/week off custody, she has been going to at least one thing every week, so there must be times she's leaving her bigger girls at home to go off to these events. It's been such an unstable year for them with parents separating, both meeting new partners and then getting a new baby half sister, plus they're moving between parents constantly as per custody arrangements. What they need is lots of love and homely family time with whichever parent they're staying with - not being palmed off on the sex positive nanny while mummy goes to the opening of an envelope.