Birthday Party Plus-Ones

We totally fell for a clickbait-y headline about a mom bringing four uninvited guests to kids' birthday parties [https://www.today.com/parents/mom-5-says-she-brings-whole-family-birthday-parties-t242940], and had to talk about it. Of course, the situation was much more nuanced than the title implied--and so are the rules about who should go to birthday parties.