Bumface Book

This book was written in quirky humorous tone, but dealt with serious subject matter. I like how that juxtaposition works. In this book a twelve year old boy is left to to look after a six year old and a toddler each day after school and most of the weekend. he does everything from picking the children up from school, to changing nappies, buying the groceries and cooking dinner.
The adults (I hesitate to label them parents as they are clearly lacking)are all self obsessed with their own careers/projects, and all assume that one of the others is there to be doing it. Meanwhile The children muddle through together. They even actively try to hide the situation so that the press won't publish negative things about their mum (she is an actress) and put her out of work. They also worry about social services taking them into care.
Even at the end of the book when it looks like things are going to change, the change the adults have in mind mean more work for the poor lad, and the adults are still assuming that someone else will step up.I wonder how many other children are the family caretaker and we just don't know about it? I suspect more than we would be comfortable with.