Two of my children school refused.
Both were mentally unwell. One of them eventually returned to school, the other never did, and at 21 is too mentally and physically ill to work or study.
I'm on a parenting mental health group on facebook. Parents on that group are in absolute despair about this issue.
When my daughter was doing it - started in year 9 - I would wake up every morning with a stone in my stomach. For about a two years, every school day would start with a battle of wills, which my daughter would usually win, because unlike me, she didn't have a problem with using violence, and she was bigger than me.
On the rare occasion I could persuade her to get in the car she would sometimes get out at a traffic light and run away. I'd then spend the day driving around trying to find her. Several times we had to involve the police. She's 25 now and we're years past that, but I'll never forget the impact it had on our family.
The assumption that the families of children who are school refusing are OK with their kidsn turning their backs on education, and haven't tried to do anything about it, only comes from people who've never experienced it and don't understand what a desperate situation it is for families.