No need to apologise.
most children that are home educated will go to many different home Ed meet ups (ones for socialising and ones for education) as well as being part of things like brownies, beavers, scouts, swimming lessons, swimming club, football teams, gymnastics class, church,kids church activities during the week, friendships and play dates, and so on.
Sadly, the fizz sisters don’t have any of that. They don’t get the chance to make any friends or socialise, they don’t get to join clubs, it’s actually heartbreaking.